net/bluetooth/mgmt.c

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3
   4    Copyright (C) 2010  Nokia Corporation
   5    Copyright (C) 2011-2012 Intel Corporation
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 /* Bluetooth HCI Management interface */
  26
  27 #include <linux/module.h>
  28 #include <asm/unaligned.h>
  29
  30 #include <net/bluetooth/bluetooth.h>
  31 #include <net/bluetooth/hci_core.h>
  32 #include <net/bluetooth/hci_sock.h>
  33 #include <net/bluetooth/l2cap.h>
  34 #include <net/bluetooth/mgmt.h>
  35
  36 #include "hci_request.h"
  37 #include "smp.h"
  38 #include "mgmt_util.h"
  39
  40 #define MGMT_VERSION    1
  41 #define MGMT_REVISION   10
  42
  43 static const u16 mgmt_commands[] = {
  44         MGMT_OP_READ_INDEX_LIST,
  45         MGMT_OP_READ_INFO,
  46         MGMT_OP_SET_POWERED,
  47         MGMT_OP_SET_DISCOVERABLE,
  48         MGMT_OP_SET_CONNECTABLE,
  49         MGMT_OP_SET_FAST_CONNECTABLE,
  50         MGMT_OP_SET_BONDABLE,
  51         MGMT_OP_SET_LINK_SECURITY,
  52         MGMT_OP_SET_SSP,
  53         MGMT_OP_SET_HS,
  54         MGMT_OP_SET_LE,
  55         MGMT_OP_SET_DEV_CLASS,
  56         MGMT_OP_SET_LOCAL_NAME,
  57         MGMT_OP_ADD_UUID,
  58         MGMT_OP_REMOVE_UUID,
  59         MGMT_OP_LOAD_LINK_KEYS,
  60         MGMT_OP_LOAD_LONG_TERM_KEYS,
  61         MGMT_OP_DISCONNECT,
  62         MGMT_OP_GET_CONNECTIONS,
  63         MGMT_OP_PIN_CODE_REPLY,
  64         MGMT_OP_PIN_CODE_NEG_REPLY,
  65         MGMT_OP_SET_IO_CAPABILITY,
  66         MGMT_OP_PAIR_DEVICE,
  67         MGMT_OP_CANCEL_PAIR_DEVICE,
  68         MGMT_OP_UNPAIR_DEVICE,
  69         MGMT_OP_USER_CONFIRM_REPLY,
  70         MGMT_OP_USER_CONFIRM_NEG_REPLY,
  71         MGMT_OP_USER_PASSKEY_REPLY,
  72         MGMT_OP_USER_PASSKEY_NEG_REPLY,
  73         MGMT_OP_READ_LOCAL_OOB_DATA,
  74         MGMT_OP_ADD_REMOTE_OOB_DATA,
  75         MGMT_OP_REMOVE_REMOTE_OOB_DATA,
  76         MGMT_OP_START_DISCOVERY,
  77         MGMT_OP_STOP_DISCOVERY,
  78         MGMT_OP_CONFIRM_NAME,
  79         MGMT_OP_BLOCK_DEVICE,
  80         MGMT_OP_UNBLOCK_DEVICE,
  81         MGMT_OP_SET_DEVICE_ID,
  82         MGMT_OP_SET_ADVERTISING,
  83         MGMT_OP_SET_BREDR,
  84         MGMT_OP_SET_STATIC_ADDRESS,
  85         MGMT_OP_SET_SCAN_PARAMS,
  86         MGMT_OP_SET_SECURE_CONN,
  87         MGMT_OP_SET_DEBUG_KEYS,
  88         MGMT_OP_SET_PRIVACY,
  89         MGMT_OP_LOAD_IRKS,
  90         MGMT_OP_GET_CONN_INFO,
  91         MGMT_OP_GET_CLOCK_INFO,
  92         MGMT_OP_ADD_DEVICE,
  93         MGMT_OP_REMOVE_DEVICE,
  94         MGMT_OP_LOAD_CONN_PARAM,
  95         MGMT_OP_READ_UNCONF_INDEX_LIST,
  96         MGMT_OP_READ_CONFIG_INFO,
  97         MGMT_OP_SET_EXTERNAL_CONFIG,
  98         MGMT_OP_SET_PUBLIC_ADDRESS,
  99         MGMT_OP_START_SERVICE_DISCOVERY,
 100         MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
 101         MGMT_OP_READ_EXT_INDEX_LIST,
 102         MGMT_OP_READ_ADV_FEATURES,
 103         MGMT_OP_ADD_ADVERTISING,
 104         MGMT_OP_REMOVE_ADVERTISING,
 105 };
 106
 107 static const u16 mgmt_events[] = {
 108         MGMT_EV_CONTROLLER_ERROR,
 109         MGMT_EV_INDEX_ADDED,
 110         MGMT_EV_INDEX_REMOVED,
 111         MGMT_EV_NEW_SETTINGS,
 112         MGMT_EV_CLASS_OF_DEV_CHANGED,
 113         MGMT_EV_LOCAL_NAME_CHANGED,
 114         MGMT_EV_NEW_LINK_KEY,
 115         MGMT_EV_NEW_LONG_TERM_KEY,
 116         MGMT_EV_DEVICE_CONNECTED,
 117         MGMT_EV_DEVICE_DISCONNECTED,
 118         MGMT_EV_CONNECT_FAILED,
 119         MGMT_EV_PIN_CODE_REQUEST,
 120         MGMT_EV_USER_CONFIRM_REQUEST,
 121         MGMT_EV_USER_PASSKEY_REQUEST,
 122         MGMT_EV_AUTH_FAILED,
 123         MGMT_EV_DEVICE_FOUND,
 124         MGMT_EV_DISCOVERING,
 125         MGMT_EV_DEVICE_BLOCKED,
 126         MGMT_EV_DEVICE_UNBLOCKED,
 127         MGMT_EV_DEVICE_UNPAIRED,
 128         MGMT_EV_PASSKEY_NOTIFY,
 129         MGMT_EV_NEW_IRK,
 130         MGMT_EV_NEW_CSRK,
 131         MGMT_EV_DEVICE_ADDED,
 132         MGMT_EV_DEVICE_REMOVED,
 133         MGMT_EV_NEW_CONN_PARAM,
 134         MGMT_EV_UNCONF_INDEX_ADDED,
 135         MGMT_EV_UNCONF_INDEX_REMOVED,
 136         MGMT_EV_NEW_CONFIG_OPTIONS,
 137         MGMT_EV_EXT_INDEX_ADDED,
 138         MGMT_EV_EXT_INDEX_REMOVED,
 139         MGMT_EV_LOCAL_OOB_DATA_UPDATED,
 140         MGMT_EV_ADVERTISING_ADDED,
 141         MGMT_EV_ADVERTISING_REMOVED,
 142 };
 143
 144 static const u16 mgmt_untrusted_commands[] = {
 145         MGMT_OP_READ_INDEX_LIST,
 146         MGMT_OP_READ_INFO,
 147         MGMT_OP_READ_UNCONF_INDEX_LIST,
 148         MGMT_OP_READ_CONFIG_INFO,
 149         MGMT_OP_READ_EXT_INDEX_LIST,
 150 };
 151
 152 static const u16 mgmt_untrusted_events[] = {
 153         MGMT_EV_INDEX_ADDED,
 154         MGMT_EV_INDEX_REMOVED,
 155         MGMT_EV_NEW_SETTINGS,
 156         MGMT_EV_CLASS_OF_DEV_CHANGED,
 157         MGMT_EV_LOCAL_NAME_CHANGED,
 158         MGMT_EV_UNCONF_INDEX_ADDED,
 159         MGMT_EV_UNCONF_INDEX_REMOVED,
 160         MGMT_EV_NEW_CONFIG_OPTIONS,
 161         MGMT_EV_EXT_INDEX_ADDED,
 162         MGMT_EV_EXT_INDEX_REMOVED,
 163 };
 164
 165 #define CACHE_TIMEOUT   msecs_to_jiffies(2 * 1000)
 166
 167 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
 168                  "\x00\x00\x00\x00\x00\x00\x00\x00"
 169
 170 /* HCI to MGMT error code conversion table */
 171 static u8 mgmt_status_table[] = {
 172         MGMT_STATUS_SUCCESS,
 173         MGMT_STATUS_UNKNOWN_COMMAND,    /* Unknown Command */
 174         MGMT_STATUS_NOT_CONNECTED,      /* No Connection */
 175         MGMT_STATUS_FAILED,             /* Hardware Failure */
 176         MGMT_STATUS_CONNECT_FAILED,     /* Page Timeout */
 177         MGMT_STATUS_AUTH_FAILED,        /* Authentication Failed */
 178         MGMT_STATUS_AUTH_FAILED,        /* PIN or Key Missing */
 179         MGMT_STATUS_NO_RESOURCES,       /* Memory Full */
 180         MGMT_STATUS_TIMEOUT,            /* Connection Timeout */
 181         MGMT_STATUS_NO_RESOURCES,       /* Max Number of Connections */
 182         MGMT_STATUS_NO_RESOURCES,       /* Max Number of SCO Connections */
 183         MGMT_STATUS_ALREADY_CONNECTED,  /* ACL Connection Exists */
 184         MGMT_STATUS_BUSY,               /* Command Disallowed */
 185         MGMT_STATUS_NO_RESOURCES,       /* Rejected Limited Resources */
 186         MGMT_STATUS_REJECTED,           /* Rejected Security */
 187         MGMT_STATUS_REJECTED,           /* Rejected Personal */
 188         MGMT_STATUS_TIMEOUT,            /* Host Timeout */
 189         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Feature */
 190         MGMT_STATUS_INVALID_PARAMS,     /* Invalid Parameters */
 191         MGMT_STATUS_DISCONNECTED,       /* OE User Ended Connection */
 192         MGMT_STATUS_NO_RESOURCES,       /* OE Low Resources */
 193         MGMT_STATUS_DISCONNECTED,       /* OE Power Off */
 194         MGMT_STATUS_DISCONNECTED,       /* Connection Terminated */
 195         MGMT_STATUS_BUSY,               /* Repeated Attempts */
 196         MGMT_STATUS_REJECTED,           /* Pairing Not Allowed */
 197         MGMT_STATUS_FAILED,             /* Unknown LMP PDU */
 198         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Remote Feature */
 199         MGMT_STATUS_REJECTED,           /* SCO Offset Rejected */
 200         MGMT_STATUS_REJECTED,           /* SCO Interval Rejected */
 201         MGMT_STATUS_REJECTED,           /* Air Mode Rejected */
 202         MGMT_STATUS_INVALID_PARAMS,     /* Invalid LMP Parameters */
 203         MGMT_STATUS_FAILED,             /* Unspecified Error */
 204         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported LMP Parameter Value */
 205         MGMT_STATUS_FAILED,             /* Role Change Not Allowed */
 206         MGMT_STATUS_TIMEOUT,            /* LMP Response Timeout */
 207         MGMT_STATUS_FAILED,             /* LMP Error Transaction Collision */
 208         MGMT_STATUS_FAILED,             /* LMP PDU Not Allowed */
 209         MGMT_STATUS_REJECTED,           /* Encryption Mode Not Accepted */
 210         MGMT_STATUS_FAILED,             /* Unit Link Key Used */
 211         MGMT_STATUS_NOT_SUPPORTED,      /* QoS Not Supported */
 212         MGMT_STATUS_TIMEOUT,            /* Instant Passed */
 213         MGMT_STATUS_NOT_SUPPORTED,      /* Pairing Not Supported */
 214         MGMT_STATUS_FAILED,             /* Transaction Collision */
 215         MGMT_STATUS_INVALID_PARAMS,     /* Unacceptable Parameter */
 216         MGMT_STATUS_REJECTED,           /* QoS Rejected */
 217         MGMT_STATUS_NOT_SUPPORTED,      /* Classification Not Supported */
 218         MGMT_STATUS_REJECTED,           /* Insufficient Security */
 219         MGMT_STATUS_INVALID_PARAMS,     /* Parameter Out Of Range */
 220         MGMT_STATUS_BUSY,               /* Role Switch Pending */
 221         MGMT_STATUS_FAILED,             /* Slot Violation */
 222         MGMT_STATUS_FAILED,             /* Role Switch Failed */
 223         MGMT_STATUS_INVALID_PARAMS,     /* EIR Too Large */
 224         MGMT_STATUS_NOT_SUPPORTED,      /* Simple Pairing Not Supported */
 225         MGMT_STATUS_BUSY,               /* Host Busy Pairing */
 226         MGMT_STATUS_REJECTED,           /* Rejected, No Suitable Channel */
 227         MGMT_STATUS_BUSY,               /* Controller Busy */
 228         MGMT_STATUS_INVALID_PARAMS,     /* Unsuitable Connection Interval */
 229         MGMT_STATUS_TIMEOUT,            /* Directed Advertising Timeout */
 230         MGMT_STATUS_AUTH_FAILED,        /* Terminated Due to MIC Failure */
 231         MGMT_STATUS_CONNECT_FAILED,     /* Connection Establishment Failed */
 232         MGMT_STATUS_CONNECT_FAILED,     /* MAC Connection Failed */
 233 };
 234
 235 static u8 mgmt_status(u8 hci_status)
 236 {
 237         if (hci_status < ARRAY_SIZE(mgmt_status_table))
 238                 return mgmt_status_table[hci_status];
 239
 240         return MGMT_STATUS_FAILED;
 241 }
 242
 243 static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data,
 244                             u16 len, int flag)
 245 {
 246         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 247                                flag, NULL);
 248 }
 249
 250 static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,
 251                               u16 len, int flag, struct sock *skip_sk)
 252 {
 253         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 254                                flag, skip_sk);
 255 }
 256
 257 static int mgmt_generic_event(u16 event, struct hci_dev *hdev, void *data,
 258                               u16 len, struct sock *skip_sk)
 259 {
 260         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 261                                HCI_MGMT_GENERIC_EVENTS, skip_sk);
 262 }
 263
 264 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
 265                       struct sock *skip_sk)
 266 {
 267         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 268                                HCI_SOCK_TRUSTED, skip_sk);
 269 }
 270
 271 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
 272                         u16 data_len)
 273 {
 274         struct mgmt_rp_read_version rp;
 275
 276         BT_DBG("sock %p", sk);
 277
 278         rp.version = MGMT_VERSION;
 279         rp.revision = cpu_to_le16(MGMT_REVISION);
 280
 281         return mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0,
 282                                  &rp, sizeof(rp));
 283 }
 284
 285 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
 286                          u16 data_len)
 287 {
 288         struct mgmt_rp_read_commands *rp;
 289         u16 num_commands, num_events;
 290         size_t rp_size;
 291         int i, err;
 292
 293         BT_DBG("sock %p", sk);
 294
 295         if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
 296                 num_commands = ARRAY_SIZE(mgmt_commands);
 297                 num_events = ARRAY_SIZE(mgmt_events);
 298         } else {
 299                 num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
 300                 num_events = ARRAY_SIZE(mgmt_untrusted_events);
 301         }
 302
 303         rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
 304
 305         rp = kmalloc(rp_size, GFP_KERNEL);
 306         if (!rp)
 307                 return -ENOMEM;
 308
 309         rp->num_commands = cpu_to_le16(num_commands);
 310         rp->num_events = cpu_to_le16(num_events);
 311
 312         if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
 313                 __le16 *opcode = rp->opcodes;
 314
 315                 for (i = 0; i < num_commands; i++, opcode++)
 316                         put_unaligned_le16(mgmt_commands[i], opcode);
 317
 318                 for (i = 0; i < num_events; i++, opcode++)
 319                         put_unaligned_le16(mgmt_events[i], opcode);
 320         } else {
 321                 __le16 *opcode = rp->opcodes;
 322
 323                 for (i = 0; i < num_commands; i++, opcode++)
 324                         put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
 325
 326                 for (i = 0; i < num_events; i++, opcode++)
 327                         put_unaligned_le16(mgmt_untrusted_events[i], opcode);
 328         }
 329
 330         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
 331                                 rp, rp_size);
 332         kfree(rp);
 333
 334         return err;
 335 }
 336
 337 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 338                            u16 data_len)
 339 {
 340         struct mgmt_rp_read_index_list *rp;
 341         struct hci_dev *d;
 342         size_t rp_len;
 343         u16 count;
 344         int err;
 345
 346         BT_DBG("sock %p", sk);
 347
 348         read_lock(&hci_dev_list_lock);
 349
 350         count = 0;
 351         list_for_each_entry(d, &hci_dev_list, list) {
 352                 if (d->dev_type == HCI_BREDR &&
 353                     !hci_dev_test_flag(d, HCI_UNCONFIGURED))
 354                         count++;
 355         }
 356
 357         rp_len = sizeof(*rp) + (2 * count);
 358         rp = kmalloc(rp_len, GFP_ATOMIC);
 359         if (!rp) {
 360                 read_unlock(&hci_dev_list_lock);
 361                 return -ENOMEM;
 362         }
 363
 364         count = 0;
 365         list_for_each_entry(d, &hci_dev_list, list) {
 366                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 367                     hci_dev_test_flag(d, HCI_CONFIG) ||
 368                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 369                         continue;
 370
 371                 /* Devices marked as raw-only are neither configured
 372                  * nor unconfigured controllers.
 373                  */
 374                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 375                         continue;
 376
 377                 if (d->dev_type == HCI_BREDR &&
 378                     !hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
 379                         rp->index[count++] = cpu_to_le16(d->id);
 380                         BT_DBG("Added hci%u", d->id);
 381                 }
 382         }
 383
 384         rp->num_controllers = cpu_to_le16(count);
 385         rp_len = sizeof(*rp) + (2 * count);
 386
 387         read_unlock(&hci_dev_list_lock);
 388
 389         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST,
 390                                 0, rp, rp_len);
 391
 392         kfree(rp);
 393
 394         return err;
 395 }
 396
 397 static int read_unconf_index_list(struct sock *sk, struct hci_dev *hdev,
 398                                   void *data, u16 data_len)
 399 {
 400         struct mgmt_rp_read_unconf_index_list *rp;
 401         struct hci_dev *d;
 402         size_t rp_len;
 403         u16 count;
 404         int err;
 405
 406         BT_DBG("sock %p", sk);
 407
 408         read_lock(&hci_dev_list_lock);
 409
 410         count = 0;
 411         list_for_each_entry(d, &hci_dev_list, list) {
 412                 if (d->dev_type == HCI_BREDR &&
 413                     hci_dev_test_flag(d, HCI_UNCONFIGURED))
 414                         count++;
 415         }
 416
 417         rp_len = sizeof(*rp) + (2 * count);
 418         rp = kmalloc(rp_len, GFP_ATOMIC);
 419         if (!rp) {
 420                 read_unlock(&hci_dev_list_lock);
 421                 return -ENOMEM;
 422         }
 423
 424         count = 0;
 425         list_for_each_entry(d, &hci_dev_list, list) {
 426                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 427                     hci_dev_test_flag(d, HCI_CONFIG) ||
 428                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 429                         continue;
 430
 431                 /* Devices marked as raw-only are neither configured
 432                  * nor unconfigured controllers.
 433                  */
 434                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 435                         continue;
 436
 437                 if (d->dev_type == HCI_BREDR &&
 438                     hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
 439                         rp->index[count++] = cpu_to_le16(d->id);
 440                         BT_DBG("Added hci%u", d->id);
 441                 }
 442         }
 443
 444         rp->num_controllers = cpu_to_le16(count);
 445         rp_len = sizeof(*rp) + (2 * count);
 446
 447         read_unlock(&hci_dev_list_lock);
 448
 449         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
 450                                 MGMT_OP_READ_UNCONF_INDEX_LIST, 0, rp, rp_len);
 451
 452         kfree(rp);
 453
 454         return err;
 455 }
 456
 457 static int read_ext_index_list(struct sock *sk, struct hci_dev *hdev,
 458                                void *data, u16 data_len)
 459 {
 460         struct mgmt_rp_read_ext_index_list *rp;
 461         struct hci_dev *d;
 462         size_t rp_len;
 463         u16 count;
 464         int err;
 465
 466         BT_DBG("sock %p", sk);
 467
 468         read_lock(&hci_dev_list_lock);
 469
 470         count = 0;
 471         list_for_each_entry(d, &hci_dev_list, list) {
 472                 if (d->dev_type == HCI_BREDR || d->dev_type == HCI_AMP)
 473                         count++;
 474         }
 475
 476         rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
 477         rp = kmalloc(rp_len, GFP_ATOMIC);
 478         if (!rp) {
 479                 read_unlock(&hci_dev_list_lock);
 480                 return -ENOMEM;
 481         }
 482
 483         count = 0;
 484         list_for_each_entry(d, &hci_dev_list, list) {
 485                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 486                     hci_dev_test_flag(d, HCI_CONFIG) ||
 487                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 488                         continue;
 489
 490                 /* Devices marked as raw-only are neither configured
 491                  * nor unconfigured controllers.
 492                  */
 493                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 494                         continue;
 495
 496                 if (d->dev_type == HCI_BREDR) {
 497                         if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
 498                                 rp->entry[count].type = 0x01;
 499                         else
 500                                 rp->entry[count].type = 0x00;
 501                 } else if (d->dev_type == HCI_AMP) {
 502                         rp->entry[count].type = 0x02;
 503                 } else {
 504                         continue;
 505                 }
 506
 507                 rp->entry[count].bus = d->bus;
 508                 rp->entry[count++].index = cpu_to_le16(d->id);
 509                 BT_DBG("Added hci%u", d->id);
 510         }
 511
 512         rp->num_controllers = cpu_to_le16(count);
 513         rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
 514
 515         read_unlock(&hci_dev_list_lock);
 516
 517         /* If this command is called at least once, then all the
 518          * default index and unconfigured index events are disabled
 519          * and from now on only extended index events are used.
 520          */
 521         hci_sock_set_flag(sk, HCI_MGMT_EXT_INDEX_EVENTS);
 522         hci_sock_clear_flag(sk, HCI_MGMT_INDEX_EVENTS);
 523         hci_sock_clear_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
 524
 525         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
 526                                 MGMT_OP_READ_EXT_INDEX_LIST, 0, rp, rp_len);
 527
 528         kfree(rp);
 529
 530         return err;
 531 }
 532
 533 static bool is_configured(struct hci_dev *hdev)
 534 {
 535         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
 536             !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
 537                 return false;
 538
 539         if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
 540             !bacmp(&hdev->public_addr, BDADDR_ANY))
 541                 return false;
 542
 543         return true;
 544 }
 545
 546 static __le32 get_missing_options(struct hci_dev *hdev)
 547 {
 548         u32 options = 0;
 549
 550         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
 551             !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
 552                 options |= MGMT_OPTION_EXTERNAL_CONFIG;
 553
 554         if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
 555             !bacmp(&hdev->public_addr, BDADDR_ANY))
 556                 options |= MGMT_OPTION_PUBLIC_ADDRESS;
 557
 558         return cpu_to_le32(options);
 559 }
 560
 561 static int new_options(struct hci_dev *hdev, struct sock *skip)
 562 {
 563         __le32 options = get_missing_options(hdev);
 564
 565         return mgmt_generic_event(MGMT_EV_NEW_CONFIG_OPTIONS, hdev, &options,
 566                                   sizeof(options), skip);
 567 }
 568
 569 static int send_options_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
 570 {
 571         __le32 options = get_missing_options(hdev);
 572
 573         return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &options,
 574                                  sizeof(options));
 575 }
 576
 577 static int read_config_info(struct sock *sk, struct hci_dev *hdev,
 578                             void *data, u16 data_len)
 579 {
 580         struct mgmt_rp_read_config_info rp;
 581         u32 options = 0;
 582
 583         BT_DBG("sock %p %s", sk, hdev->name);
 584
 585         hci_dev_lock(hdev);
 586
 587         memset(&rp, 0, sizeof(rp));
 588         rp.manufacturer = cpu_to_le16(hdev->manufacturer);
 589
 590         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
 591                 options |= MGMT_OPTION_EXTERNAL_CONFIG;
 592
 593         if (hdev->set_bdaddr)
 594                 options |= MGMT_OPTION_PUBLIC_ADDRESS;
 595
 596         rp.supported_options = cpu_to_le32(options);
 597         rp.missing_options = get_missing_options(hdev);
 598
 599         hci_dev_unlock(hdev);
 600
 601         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONFIG_INFO, 0,
 602                                  &rp, sizeof(rp));
 603 }
 604
 605 static u32 get_supported_settings(struct hci_dev *hdev)
 606 {
 607         u32 settings = 0;
 608
 609         settings |= MGMT_SETTING_POWERED;
 610         settings |= MGMT_SETTING_BONDABLE;
 611         settings |= MGMT_SETTING_DEBUG_KEYS;
 612         settings |= MGMT_SETTING_CONNECTABLE;
 613         settings |= MGMT_SETTING_DISCOVERABLE;
 614
 615         if (lmp_bredr_capable(hdev)) {
 616                 if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
 617                         settings |= MGMT_SETTING_FAST_CONNECTABLE;
 618                 settings |= MGMT_SETTING_BREDR;
 619                 settings |= MGMT_SETTING_LINK_SECURITY;
 620
 621                 if (lmp_ssp_capable(hdev)) {
 622                         settings |= MGMT_SETTING_SSP;
 623                         settings |= MGMT_SETTING_HS;
 624                 }
 625
 626                 if (lmp_sc_capable(hdev))
 627                         settings |= MGMT_SETTING_SECURE_CONN;
 628         }
 629
 630         if (lmp_le_capable(hdev)) {
 631                 settings |= MGMT_SETTING_LE;
 632                 settings |= MGMT_SETTING_ADVERTISING;
 633                 settings |= MGMT_SETTING_SECURE_CONN;
 634                 settings |= MGMT_SETTING_PRIVACY;
 635                 settings |= MGMT_SETTING_STATIC_ADDRESS;
 636         }
 637
 638         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
 639             hdev->set_bdaddr)
 640                 settings |= MGMT_SETTING_CONFIGURATION;
 641
 642         return settings;
 643 }
 644
 645 static u32 get_current_settings(struct hci_dev *hdev)
 646 {
 647         u32 settings = 0;
 648
 649         if (hdev_is_powered(hdev))
 650                 settings |= MGMT_SETTING_POWERED;
 651
 652         if (hci_dev_test_flag(hdev, HCI_CONNECTABLE))
 653                 settings |= MGMT_SETTING_CONNECTABLE;
 654
 655         if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
 656                 settings |= MGMT_SETTING_FAST_CONNECTABLE;
 657
 658         if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
 659                 settings |= MGMT_SETTING_DISCOVERABLE;
 660
 661         if (hci_dev_test_flag(hdev, HCI_BONDABLE))
 662                 settings |= MGMT_SETTING_BONDABLE;
 663
 664         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
 665                 settings |= MGMT_SETTING_BREDR;
 666
 667         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
 668                 settings |= MGMT_SETTING_LE;
 669
 670         if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY))
 671                 settings |= MGMT_SETTING_LINK_SECURITY;
 672
 673         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
 674                 settings |= MGMT_SETTING_SSP;
 675
 676         if (hci_dev_test_flag(hdev, HCI_HS_ENABLED))
 677                 settings |= MGMT_SETTING_HS;
 678
 679         if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
 680                 settings |= MGMT_SETTING_ADVERTISING;
 681
 682         if (hci_dev_test_flag(hdev, HCI_SC_ENABLED))
 683                 settings |= MGMT_SETTING_SECURE_CONN;
 684
 685         if (hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS))
 686                 settings |= MGMT_SETTING_DEBUG_KEYS;
 687
 688         if (hci_dev_test_flag(hdev, HCI_PRIVACY))
 689                 settings |= MGMT_SETTING_PRIVACY;
 690
 691         /* The current setting for static address has two purposes. The
 692          * first is to indicate if the static address will be used and
 693          * the second is to indicate if it is actually set.
 694          *
 695          * This means if the static address is not configured, this flag
 696          * will never be set. If the address is configured, then if the
 697          * address is actually used decides if the flag is set or not.
 698          *
 699          * For single mode LE only controllers and dual-mode controllers
 700          * with BR/EDR disabled, the existence of the static address will
 701          * be evaluated.
 702          */
 703         if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
 704             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
 705             !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
 706                 if (bacmp(&hdev->static_addr, BDADDR_ANY))
 707                         settings |= MGMT_SETTING_STATIC_ADDRESS;
 708         }
 709
 710         return settings;
 711 }
 712
 713 #define PNP_INFO_SVCLASS_ID             0x1200
 714
 715 static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 716 {
 717         u8 *ptr = data, *uuids_start = NULL;
 718         struct bt_uuid *uuid;
 719
 720         if (len < 4)
 721                 return ptr;
 722
 723         list_for_each_entry(uuid, &hdev->uuids, list) {
 724                 u16 uuid16;
 725
 726                 if (uuid->size != 16)
 727                         continue;
 728
 729                 uuid16 = get_unaligned_le16(&uuid->uuid[12]);
 730                 if (uuid16 < 0x1100)
 731                         continue;
 732
 733                 if (uuid16 == PNP_INFO_SVCLASS_ID)
 734                         continue;
 735
 736                 if (!uuids_start) {
 737                         uuids_start = ptr;
 738                         uuids_start[0] = 1;
 739                         uuids_start[1] = EIR_UUID16_ALL;
 740                         ptr += 2;
 741                 }
 742
 743                 /* Stop if not enough space to put next UUID */
 744                 if ((ptr - data) + sizeof(u16) > len) {
 745                         uuids_start[1] = EIR_UUID16_SOME;
 746                         break;
 747                 }
 748
 749                 *ptr++ = (uuid16 & 0x00ff);
 750                 *ptr++ = (uuid16 & 0xff00) >> 8;
 751                 uuids_start[0] += sizeof(uuid16);
 752         }
 753
 754         return ptr;
 755 }
 756
 757 static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 758 {
 759         u8 *ptr = data, *uuids_start = NULL;
 760         struct bt_uuid *uuid;
 761
 762         if (len < 6)
 763                 return ptr;
 764
 765         list_for_each_entry(uuid, &hdev->uuids, list) {
 766                 if (uuid->size != 32)
 767                         continue;
 768
 769                 if (!uuids_start) {
 770                         uuids_start = ptr;
 771                         uuids_start[0] = 1;
 772                         uuids_start[1] = EIR_UUID32_ALL;
 773                         ptr += 2;
 774                 }
 775
 776                 /* Stop if not enough space to put next UUID */
 777                 if ((ptr - data) + sizeof(u32) > len) {
 778                         uuids_start[1] = EIR_UUID32_SOME;
 779                         break;
 780                 }
 781
 782                 memcpy(ptr, &uuid->uuid[12], sizeof(u32));
 783                 ptr += sizeof(u32);
 784                 uuids_start[0] += sizeof(u32);
 785         }
 786
 787         return ptr;
 788 }
 789
 790 static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 791 {
 792         u8 *ptr = data, *uuids_start = NULL;
 793         struct bt_uuid *uuid;
 794
 795         if (len < 18)
 796                 return ptr;
 797
 798         list_for_each_entry(uuid, &hdev->uuids, list) {
 799                 if (uuid->size != 128)
 800                         continue;
 801
 802                 if (!uuids_start) {
 803                         uuids_start = ptr;
 804                         uuids_start[0] = 1;
 805                         uuids_start[1] = EIR_UUID128_ALL;
 806                         ptr += 2;
 807                 }
 808
 809                 /* Stop if not enough space to put next UUID */
 810                 if ((ptr - data) + 16 > len) {
 811                         uuids_start[1] = EIR_UUID128_SOME;
 812                         break;
 813                 }
 814
 815                 memcpy(ptr, uuid->uuid, 16);
 816                 ptr += 16;
 817                 uuids_start[0] += 16;
 818         }
 819
 820         return ptr;
 821 }
 822
 823 static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
 824 {
 825         return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
 826 }
 827
 828 static struct mgmt_pending_cmd *pending_find_data(u16 opcode,
 829                                                   struct hci_dev *hdev,
 830                                                   const void *data)
 831 {
 832         return mgmt_pending_find_data(HCI_CHANNEL_CONTROL, opcode, hdev, data);
 833 }
 834
 835 static u8 get_current_adv_instance(struct hci_dev *hdev)
 836 {
 837         /* The "Set Advertising" setting supersedes the "Add Advertising"
 838          * setting. Here we set the advertising data based on which
 839          * setting was set. When neither apply, default to the global settings,
 840          * represented by instance "0".
 841          */
 842         if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
 843             !hci_dev_test_flag(hdev, HCI_ADVERTISING))
 844                 return hdev->cur_adv_instance;
 845
 846         return 0x00;
 847 }
 848
 849 static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
 850 {
 851         u8 ad_len = 0;
 852         size_t name_len;
 853
 854         name_len = strlen(hdev->dev_name);
 855         if (name_len > 0) {
 856                 size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
 857
 858                 if (name_len > max_len) {
 859                         name_len = max_len;
 860                         ptr[1] = EIR_NAME_SHORT;
 861                 } else
 862                         ptr[1] = EIR_NAME_COMPLETE;
 863
 864                 ptr[0] = name_len + 1;
 865
 866                 memcpy(ptr + 2, hdev->dev_name, name_len);
 867
 868                 ad_len += (name_len + 2);
 869                 ptr += (name_len + 2);
 870         }
 871
 872         return ad_len;
 873 }
 874
 875 static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
 876                                         u8 *ptr)
 877 {
 878         struct adv_info *adv_instance;
 879
 880         adv_instance = hci_find_adv_instance(hdev, instance);
 881         if (!adv_instance)
 882                 return 0;
 883
 884         /* TODO: Set the appropriate entries based on advertising instance flags
 885          * here once flags other than 0 are supported.
 886          */
 887         memcpy(ptr, adv_instance->scan_rsp_data,
 888                adv_instance->scan_rsp_len);
 889
 890         return adv_instance->scan_rsp_len;
 891 }
 892
 893 static void update_inst_scan_rsp_data(struct hci_request *req, u8 instance)
 894 {
 895         struct hci_dev *hdev = req->hdev;
 896         struct hci_cp_le_set_scan_rsp_data cp;
 897         u8 len;
 898
 899         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
 900                 return;
 901
 902         memset(&cp, 0, sizeof(cp));
 903
 904         if (instance)
 905                 len = create_instance_scan_rsp_data(hdev, instance, cp.data);
 906         else
 907                 len = create_default_scan_rsp_data(hdev, cp.data);
 908
 909         if (hdev->scan_rsp_data_len == len &&
 910             !memcmp(cp.data, hdev->scan_rsp_data, len))
 911                 return;
 912
 913         memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
 914         hdev->scan_rsp_data_len = len;
 915
 916         cp.length = len;
 917
 918         hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
 919 }
 920
 921 static void update_scan_rsp_data(struct hci_request *req)
 922 {
 923         update_inst_scan_rsp_data(req, get_current_adv_instance(req->hdev));
 924 }
 925
 926 static u8 get_adv_discov_flags(struct hci_dev *hdev)
 927 {
 928         struct mgmt_pending_cmd *cmd;
 929
 930         /* If there's a pending mgmt command the flags will not yet have
 931          * their final values, so check for this first.
 932          */
 933         cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
 934         if (cmd) {
 935                 struct mgmt_mode *cp = cmd->param;
 936                 if (cp->val == 0x01)
 937                         return LE_AD_GENERAL;
 938                 else if (cp->val == 0x02)
 939                         return LE_AD_LIMITED;
 940         } else {
 941                 if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
 942                         return LE_AD_LIMITED;
 943                 else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
 944                         return LE_AD_GENERAL;
 945         }
 946
 947         return 0;
 948 }
 949
 950 static bool get_connectable(struct hci_dev *hdev)
 951 {
 952         struct mgmt_pending_cmd *cmd;
 953
 954         /* If there's a pending mgmt command the flag will not yet have
 955          * it's final value, so check for this first.
 956          */
 957         cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
 958         if (cmd) {
 959                 struct mgmt_mode *cp = cmd->param;
 960
 961                 return cp->val;
 962         }
 963
 964         return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
 965 }
 966
 967 static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
 968 {
 969         u32 flags;
 970         struct adv_info *adv_instance;
 971
 972         if (instance == 0x00) {
 973                 /* Instance 0 always manages the "Tx Power" and "Flags"
 974                  * fields
 975                  */
 976                 flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
 977
 978                 /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
 979                  * corresponds to the "connectable" instance flag.
 980                  */
 981                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
 982                         flags |= MGMT_ADV_FLAG_CONNECTABLE;
 983
 984                 return flags;
 985         }
 986
 987         adv_instance = hci_find_adv_instance(hdev, instance);
 988
 989         /* Return 0 when we got an invalid instance identifier. */
 990         if (!adv_instance)
 991                 return 0;
 992
 993         return adv_instance->flags;
 994 }
 995
 996 static u8 get_cur_adv_instance_scan_rsp_len(struct hci_dev *hdev)
 997 {
 998         u8 instance = get_current_adv_instance(hdev);
 999         struct adv_info *adv_instance;
1000
1001         /* Ignore instance 0 */
1002         if (instance == 0x00)
1003                 return 0;
1004
1005         adv_instance = hci_find_adv_instance(hdev, instance);
1006         if (!adv_instance)
1007                 return 0;
1008
1009         /* TODO: Take into account the "appearance" and "local-name" flags here.
1010          * These are currently being ignored as they are not supported.
1011          */
1012         return adv_instance->scan_rsp_len;
1013 }
1014
1015 static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
1016 {
1017         struct adv_info *adv_instance = NULL;
1018         u8 ad_len = 0, flags = 0;
1019         u32 instance_flags;
1020
1021         /* Return 0 when the current instance identifier is invalid. */
1022         if (instance) {
1023                 adv_instance = hci_find_adv_instance(hdev, instance);
1024                 if (!adv_instance)
1025                         return 0;
1026         }
1027
1028         instance_flags = get_adv_instance_flags(hdev, instance);
1029
1030         /* The Add Advertising command allows userspace to set both the general
1031          * and limited discoverable flags.
1032          */
1033         if (instance_flags & MGMT_ADV_FLAG_DISCOV)
1034                 flags |= LE_AD_GENERAL;
1035
1036         if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV)
1037                 flags |= LE_AD_LIMITED;
1038
1039         if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) {
1040                 /* If a discovery flag wasn't provided, simply use the global
1041                  * settings.
1042                  */
1043                 if (!flags)
1044                         flags |= get_adv_discov_flags(hdev);
1045
1046                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1047                         flags |= LE_AD_NO_BREDR;
1048
1049                 /* If flags would still be empty, then there is no need to
1050                  * include the "Flags" AD field".
1051                  */
1052                 if (flags) {
1053                         ptr[0] = 0x02;
1054                         ptr[1] = EIR_FLAGS;
1055                         ptr[2] = flags;
1056
1057                         ad_len += 3;
1058                         ptr += 3;
1059                 }
1060         }
1061
1062         if (adv_instance) {
1063                 memcpy(ptr, adv_instance->adv_data,
1064                        adv_instance->adv_data_len);
1065                 ad_len += adv_instance->adv_data_len;
1066                 ptr += adv_instance->adv_data_len;
1067         }
1068
1069         /* Provide Tx Power only if we can provide a valid value for it */
1070         if (hdev->adv_tx_power != HCI_TX_POWER_INVALID &&
1071             (instance_flags & MGMT_ADV_FLAG_TX_POWER)) {
1072                 ptr[0] = 0x02;
1073                 ptr[1] = EIR_TX_POWER;
1074                 ptr[2] = (u8)hdev->adv_tx_power;
1075
1076                 ad_len += 3;
1077                 ptr += 3;
1078         }
1079
1080         return ad_len;
1081 }
1082
1083 static void update_inst_adv_data(struct hci_request *req, u8 instance)
1084 {
1085         struct hci_dev *hdev = req->hdev;
1086         struct hci_cp_le_set_adv_data cp;
1087         u8 len;
1088
1089         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1090                 return;
1091
1092         memset(&cp, 0, sizeof(cp));
1093
1094         len = create_instance_adv_data(hdev, instance, cp.data);
1095
1096         /* There's nothing to do if the data hasn't changed */
1097         if (hdev->adv_data_len == len &&
1098             memcmp(cp.data, hdev->adv_data, len) == 0)
1099                 return;
1100
1101         memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
1102         hdev->adv_data_len = len;
1103
1104         cp.length = len;
1105
1106         hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
1107 }
1108
1109 static void update_adv_data(struct hci_request *req)
1110 {
1111         update_inst_adv_data(req, get_current_adv_instance(req->hdev));
1112 }
1113
1114 int mgmt_update_adv_data(struct hci_dev *hdev)
1115 {
1116         struct hci_request req;
1117
1118         hci_req_init(&req, hdev);
1119         update_adv_data(&req);
1120
1121         return hci_req_run(&req, NULL);
1122 }
1123
1124 static void create_eir(struct hci_dev *hdev, u8 *data)
1125 {
1126         u8 *ptr = data;
1127         size_t name_len;
1128
1129         name_len = strlen(hdev->dev_name);
1130
1131         if (name_len > 0) {
1132                 /* EIR Data type */
1133                 if (name_len > 48) {
1134                         name_len = 48;
1135                         ptr[1] = EIR_NAME_SHORT;
1136                 } else
1137                         ptr[1] = EIR_NAME_COMPLETE;
1138
1139                 /* EIR Data length */
1140                 ptr[0] = name_len + 1;
1141
1142                 memcpy(ptr + 2, hdev->dev_name, name_len);
1143
1144                 ptr += (name_len + 2);
1145         }
1146
1147         if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
1148                 ptr[0] = 2;
1149                 ptr[1] = EIR_TX_POWER;
1150                 ptr[2] = (u8) hdev->inq_tx_power;
1151
1152                 ptr += 3;
1153         }
1154
1155         if (hdev->devid_source > 0) {
1156                 ptr[0] = 9;
1157                 ptr[1] = EIR_DEVICE_ID;
1158
1159                 put_unaligned_le16(hdev->devid_source, ptr + 2);
1160                 put_unaligned_le16(hdev->devid_vendor, ptr + 4);
1161                 put_unaligned_le16(hdev->devid_product, ptr + 6);
1162                 put_unaligned_le16(hdev->devid_version, ptr + 8);
1163
1164                 ptr += 10;
1165         }
1166
1167         ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1168         ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1169         ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1170 }
1171
1172 static void update_eir(struct hci_request *req)
1173 {
1174         struct hci_dev *hdev = req->hdev;
1175         struct hci_cp_write_eir cp;
1176
1177         if (!hdev_is_powered(hdev))
1178                 return;
1179
1180         if (!lmp_ext_inq_capable(hdev))
1181                 return;
1182
1183         if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
1184                 return;
1185
1186         if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1187                 return;
1188
1189         memset(&cp, 0, sizeof(cp));
1190
1191         create_eir(hdev, cp.data);
1192
1193         if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
1194                 return;
1195
1196         memcpy(hdev->eir, cp.data, sizeof(cp.data));
1197
1198         hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
1199 }
1200
1201 static u8 get_service_classes(struct hci_dev *hdev)
1202 {
1203         struct bt_uuid *uuid;
1204         u8 val = 0;
1205
1206         list_for_each_entry(uuid, &hdev->uuids, list)
1207                 val |= uuid->svc_hint;
1208
1209         return val;
1210 }
1211
1212 static void update_class(struct hci_request *req)
1213 {
1214         struct hci_dev *hdev = req->hdev;
1215         u8 cod[3];
1216
1217         BT_DBG("%s", hdev->name);
1218
1219         if (!hdev_is_powered(hdev))
1220                 return;
1221
1222         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1223                 return;
1224
1225         if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1226                 return;
1227
1228         cod[0] = hdev->minor_class;
1229         cod[1] = hdev->major_class;
1230         cod[2] = get_service_classes(hdev);
1231
1232         if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
1233                 cod[1] |= 0x20;
1234
1235         if (memcmp(cod, hdev->dev_class, 3) == 0)
1236                 return;
1237
1238         hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
1239 }
1240
1241 static void disable_advertising(struct hci_request *req)
1242 {
1243         u8 enable = 0x00;
1244
1245         hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1246 }
1247
1248 static void enable_advertising(struct hci_request *req)
1249 {
1250         struct hci_dev *hdev = req->hdev;
1251         struct hci_cp_le_set_adv_param cp;
1252         u8 own_addr_type, enable = 0x01;
1253         bool connectable;
1254         u8 instance;
1255         u32 flags;
1256
1257         if (hci_conn_num(hdev, LE_LINK) > 0)
1258                 return;
1259
1260         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1261                 disable_advertising(req);
1262
1263         /* Clear the HCI_LE_ADV bit temporarily so that the
1264          * hci_update_random_address knows that it's safe to go ahead
1265          * and write a new random address. The flag will be set back on
1266          * as soon as the SET_ADV_ENABLE HCI command completes.
1267          */
1268         hci_dev_clear_flag(hdev, HCI_LE_ADV);
1269
1270         instance = get_current_adv_instance(hdev);
1271         flags = get_adv_instance_flags(hdev, instance);
1272
1273         /* If the "connectable" instance flag was not set, then choose between
1274          * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
1275          */
1276         connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
1277                       get_connectable(hdev);
1278
1279         /* Set require_privacy to true only when non-connectable
1280          * advertising is used. In that case it is fine to use a
1281          * non-resolvable private address.
1282          */
1283         if (hci_update_random_address(req, !connectable, &own_addr_type) < 0)
1284                 return;
1285
1286         memset(&cp, 0, sizeof(cp));
1287         cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
1288         cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
1289
1290         if (connectable)
1291                 cp.type = LE_ADV_IND;
1292         else if (get_cur_adv_instance_scan_rsp_len(hdev))
1293                 cp.type = LE_ADV_SCAN_IND;
1294         else
1295                 cp.type = LE_ADV_NONCONN_IND;
1296
1297         cp.own_address_type = own_addr_type;
1298         cp.channel_map = hdev->le_adv_channel_map;
1299
1300         hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
1301
1302         hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1303 }
1304
1305 static void service_cache_off(struct work_struct *work)
1306 {
1307         struct hci_dev *hdev = container_of(work, struct hci_dev,
1308                                             service_cache.work);
1309         struct hci_request req;
1310
1311         if (!hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
1312                 return;
1313
1314         hci_req_init(&req, hdev);
1315
1316         hci_dev_lock(hdev);
1317
1318         update_eir(&req);
1319         update_class(&req);
1320
1321         hci_dev_unlock(hdev);
1322
1323         hci_req_run(&req, NULL);
1324 }
1325
1326 static void rpa_expired(struct work_struct *work)
1327 {
1328         struct hci_dev *hdev = container_of(work, struct hci_dev,
1329                                             rpa_expired.work);
1330         struct hci_request req;
1331
1332         BT_DBG("");
1333
1334         hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
1335
1336         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING))
1337                 return;
1338
1339         /* The generation of a new RPA and programming it into the
1340          * controller happens in the enable_advertising() function.
1341          */
1342         hci_req_init(&req, hdev);
1343         enable_advertising(&req);
1344         hci_req_run(&req, NULL);
1345 }
1346
1347 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
1348 {
1349         if (hci_dev_test_and_set_flag(hdev, HCI_MGMT))
1350                 return;
1351
1352         INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
1353         INIT_DELAYED_WORK(&hdev->rpa_expired, rpa_expired);
1354
1355         /* Non-mgmt controlled devices get this bit set
1356          * implicitly so that pairing works for them, however
1357          * for mgmt we require user-space to explicitly enable
1358          * it
1359          */
1360         hci_dev_clear_flag(hdev, HCI_BONDABLE);
1361 }
1362
1363 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
1364                                 void *data, u16 data_len)
1365 {
1366         struct mgmt_rp_read_info rp;
1367
1368         BT_DBG("sock %p %s", sk, hdev->name);
1369
1370         hci_dev_lock(hdev);
1371
1372         memset(&rp, 0, sizeof(rp));
1373
1374         bacpy(&rp.bdaddr, &hdev->bdaddr);
1375
1376         rp.version = hdev->hci_ver;
1377         rp.manufacturer = cpu_to_le16(hdev->manufacturer);
1378
1379         rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
1380         rp.current_settings = cpu_to_le32(get_current_settings(hdev));
1381
1382         memcpy(rp.dev_class, hdev->dev_class, 3);
1383
1384         memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
1385         memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
1386
1387         hci_dev_unlock(hdev);
1388
1389         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
1390                                  sizeof(rp));
1391 }
1392
1393 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
1394 {
1395         __le32 settings = cpu_to_le32(get_current_settings(hdev));
1396
1397         return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &settings,
1398                                  sizeof(settings));
1399 }
1400
1401 static void clean_up_hci_complete(struct hci_dev *hdev, u8 status, u16 opcode)
1402 {
1403         BT_DBG("%s status 0x%02x", hdev->name, status);
1404
1405         if (hci_conn_count(hdev) == 0) {
1406                 cancel_delayed_work(&hdev->power_off);
1407                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
1408         }
1409 }
1410
1411 static bool hci_stop_discovery(struct hci_request *req)
1412 {
1413         struct hci_dev *hdev = req->hdev;
1414         struct hci_cp_remote_name_req_cancel cp;
1415         struct inquiry_entry *e;
1416
1417         switch (hdev->discovery.state) {
1418         case DISCOVERY_FINDING:
1419                 if (test_bit(HCI_INQUIRY, &hdev->flags))
1420                         hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
1421
1422                 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1423                         cancel_delayed_work(&hdev->le_scan_disable);
1424                         hci_req_add_le_scan_disable(req);
1425                 }
1426
1427                 return true;
1428
1429         case DISCOVERY_RESOLVING:
1430                 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
1431                                                      NAME_PENDING);
1432                 if (!e)
1433                         break;
1434
1435                 bacpy(&cp.bdaddr, &e->data.bdaddr);
1436                 hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
1437                             &cp);
1438
1439                 return true;
1440
1441         default:
1442                 /* Passive scanning */
1443                 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1444                         hci_req_add_le_scan_disable(req);
1445                         return true;
1446                 }
1447
1448                 break;
1449         }
1450
1451         return false;
1452 }
1453
1454 static void advertising_added(struct sock *sk, struct hci_dev *hdev,
1455                               u8 instance)
1456 {
1457         struct mgmt_ev_advertising_added ev;
1458
1459         ev.instance = instance;
1460
1461         mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
1462 }
1463
1464 static void advertising_removed(struct sock *sk, struct hci_dev *hdev,
1465                                 u8 instance)
1466 {
1467         struct mgmt_ev_advertising_removed ev;
1468
1469         ev.instance = instance;
1470
1471         mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
1472 }
1473
1474 static int schedule_adv_instance(struct hci_request *req, u8 instance,
1475                                  bool force) {
1476         struct hci_dev *hdev = req->hdev;
1477         struct adv_info *adv_instance = NULL;
1478         u16 timeout;
1479
1480         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
1481             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
1482                 return -EPERM;
1483
1484         if (hdev->adv_instance_timeout)
1485                 return -EBUSY;
1486
1487         adv_instance = hci_find_adv_instance(hdev, instance);
1488         if (!adv_instance)
1489                 return -ENOENT;
1490
1491         /* A zero timeout means unlimited advertising. As long as there is
1492          * only one instance, duration should be ignored. We still set a timeout
1493          * in case further instances are being added later on.
1494          *
1495          * If the remaining lifetime of the instance is more than the duration
1496          * then the timeout corresponds to the duration, otherwise it will be
1497          * reduced to the remaining instance lifetime.
1498          */
1499         if (adv_instance->timeout == 0 ||
1500             adv_instance->duration <= adv_instance->remaining_time)
1501                 timeout = adv_instance->duration;
1502         else
1503                 timeout = adv_instance->remaining_time;
1504
1505         /* The remaining time is being reduced unless the instance is being
1506          * advertised without time limit.
1507          */
1508         if (adv_instance->timeout)
1509                 adv_instance->remaining_time =
1510                                 adv_instance->remaining_time - timeout;
1511
1512         hdev->adv_instance_timeout = timeout;
1513         queue_delayed_work(hdev->workqueue,
1514                            &hdev->adv_instance_expire,
1515                            msecs_to_jiffies(timeout * 1000));
1516
1517         /* If we're just re-scheduling the same instance again then do not
1518          * execute any HCI commands. This happens when a single instance is
1519          * being advertised.
1520          */
1521         if (!force && hdev->cur_adv_instance == instance &&
1522             hci_dev_test_flag(hdev, HCI_LE_ADV))
1523                 return 0;
1524
1525         hdev->cur_adv_instance = instance;
1526         update_adv_data(req);
1527         update_scan_rsp_data(req);
1528         enable_advertising(req);
1529
1530         return 0;
1531 }
1532
1533 static void cancel_adv_timeout(struct hci_dev *hdev)
1534 {
1535         if (hdev->adv_instance_timeout) {
1536                 hdev->adv_instance_timeout = 0;
1537                 cancel_delayed_work(&hdev->adv_instance_expire);
1538         }
1539 }
1540
1541 /* For a single instance:
1542  * - force == true: The instance will be removed even when its remaining
1543  *   lifetime is not zero.
1544  * - force == false: the instance will be deactivated but kept stored unless
1545  *   the remaining lifetime is zero.
1546  *
1547  * For instance == 0x00:
1548  * - force == true: All instances will be removed regardless of their timeout
1549  *   setting.
1550  * - force == false: Only instances that have a timeout will be removed.
1551  */
1552 static void clear_adv_instance(struct hci_dev *hdev, struct hci_request *req,
1553                                u8 instance, bool force)
1554 {
1555         struct adv_info *adv_instance, *n, *next_instance = NULL;
1556         int err;
1557         u8 rem_inst;
1558
1559         /* Cancel any timeout concerning the removed instance(s). */
1560         if (!instance || hdev->cur_adv_instance == instance)
1561                 cancel_adv_timeout(hdev);
1562
1563         /* Get the next instance to advertise BEFORE we remove
1564          * the current one. This can be the same instance again
1565          * if there is only one instance.
1566          */
1567         if (instance && hdev->cur_adv_instance == instance)
1568                 next_instance = hci_get_next_instance(hdev, instance);
1569
1570         if (instance == 0x00) {
1571                 list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances,
1572                                          list) {
1573                         if (!(force || adv_instance->timeout))
1574                                 continue;
1575
1576                         rem_inst = adv_instance->instance;
1577                         err = hci_remove_adv_instance(hdev, rem_inst);
1578                         if (!err)
1579                                 advertising_removed(NULL, hdev, rem_inst);
1580                 }
1581                 hdev->cur_adv_instance = 0x00;
1582         } else {
1583                 adv_instance = hci_find_adv_instance(hdev, instance);
1584
1585                 if (force || (adv_instance && adv_instance->timeout &&
1586                               !adv_instance->remaining_time)) {
1587                         /* Don't advertise a removed instance. */
1588                         if (next_instance &&
1589                             next_instance->instance == instance)
1590                                 next_instance = NULL;
1591
1592                         err = hci_remove_adv_instance(hdev, instance);
1593                         if (!err)
1594                                 advertising_removed(NULL, hdev, instance);
1595                 }
1596         }
1597
1598         if (list_empty(&hdev->adv_instances)) {
1599                 hdev->cur_adv_instance = 0x00;
1600                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
1601         }
1602
1603         if (!req || !hdev_is_powered(hdev) ||
1604             hci_dev_test_flag(hdev, HCI_ADVERTISING))
1605                 return;
1606
1607         if (next_instance)
1608                 schedule_adv_instance(req, next_instance->instance, false);
1609 }
1610
1611 static int clean_up_hci_state(struct hci_dev *hdev)
1612 {
1613         struct hci_request req;
1614         struct hci_conn *conn;
1615         bool discov_stopped;
1616         int err;
1617
1618         hci_req_init(&req, hdev);
1619
1620         if (test_bit(HCI_ISCAN, &hdev->flags) ||
1621             test_bit(HCI_PSCAN, &hdev->flags)) {
1622                 u8 scan = 0x00;
1623                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
1624         }
1625
1626         clear_adv_instance(hdev, NULL, 0x00, false);
1627
1628         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1629                 disable_advertising(&req);
1630
1631         discov_stopped = hci_stop_discovery(&req);
1632
1633         list_for_each_entry(conn, &hdev->conn_hash.list, list) {
1634                 struct hci_cp_disconnect dc;
1635                 struct hci_cp_reject_conn_req rej;
1636
1637                 switch (conn->state) {
1638                 case BT_CONNECTED:
1639                 case BT_CONFIG:
1640                         dc.handle = cpu_to_le16(conn->handle);
1641                         dc.reason = 0x15; /* Terminated due to Power Off */
1642                         hci_req_add(&req, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1643                         break;
1644                 case BT_CONNECT:
1645                         if (conn->type == LE_LINK)
1646                                 hci_req_add(&req, HCI_OP_LE_CREATE_CONN_CANCEL,
1647                                             0, NULL);
1648                         else if (conn->type == ACL_LINK)
1649                                 hci_req_add(&req, HCI_OP_CREATE_CONN_CANCEL,
1650                                             6, &conn->dst);
1651                         break;
1652                 case BT_CONNECT2:
1653                         bacpy(&rej.bdaddr, &conn->dst);
1654                         rej.reason = 0x15; /* Terminated due to Power Off */
1655                         if (conn->type == ACL_LINK)
1656                                 hci_req_add(&req, HCI_OP_REJECT_CONN_REQ,
1657                                             sizeof(rej), &rej);
1658                         else if (conn->type == SCO_LINK)
1659                                 hci_req_add(&req, HCI_OP_REJECT_SYNC_CONN_REQ,
1660                                             sizeof(rej), &rej);
1661                         break;
1662                 }
1663         }
1664
1665         err = hci_req_run(&req, clean_up_hci_complete);
1666         if (!err && discov_stopped)
1667                 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
1668
1669         return err;
1670 }
1671
1672 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
1673                        u16 len)
1674 {
1675         struct mgmt_mode *cp = data;
1676         struct mgmt_pending_cmd *cmd;
1677         int err;
1678
1679         BT_DBG("request for %s", hdev->name);
1680
1681         if (cp->val != 0x00 && cp->val != 0x01)
1682                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1683                                        MGMT_STATUS_INVALID_PARAMS);
1684
1685         hci_dev_lock(hdev);
1686
1687         if (pending_find(MGMT_OP_SET_POWERED, hdev)) {
1688                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1689                                       MGMT_STATUS_BUSY);
1690                 goto failed;
1691         }
1692
1693         if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) {
1694                 cancel_delayed_work(&hdev->power_off);
1695
1696                 if (cp->val) {
1697                         mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev,
1698                                          data, len);
1699                         err = mgmt_powered(hdev, 1);
1700                         goto failed;
1701                 }
1702         }
1703
1704         if (!!cp->val == hdev_is_powered(hdev)) {
1705                 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
1706                 goto failed;
1707         }
1708
1709         cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
1710         if (!cmd) {
1711                 err = -ENOMEM;
1712                 goto failed;
1713         }
1714
1715         if (cp->val) {
1716                 queue_work(hdev->req_workqueue, &hdev->power_on);
1717                 err = 0;
1718         } else {
1719                 /* Disconnect connections, stop scans, etc */
1720                 err = clean_up_hci_state(hdev);
1721                 if (!err)
1722                         queue_delayed_work(hdev->req_workqueue, &hdev->power_off,
1723                                            HCI_POWER_OFF_TIMEOUT);
1724
1725                 /* ENODATA means there were no HCI commands queued */
1726                 if (err == -ENODATA) {
1727                         cancel_delayed_work(&hdev->power_off);
1728                         queue_work(hdev->req_workqueue, &hdev->power_off.work);
1729                         err = 0;
1730                 }
1731         }
1732
1733 failed:
1734         hci_dev_unlock(hdev);
1735         return err;
1736 }
1737
1738 static int new_settings(struct hci_dev *hdev, struct sock *skip)
1739 {
1740         __le32 ev = cpu_to_le32(get_current_settings(hdev));
1741
1742         return mgmt_generic_event(MGMT_EV_NEW_SETTINGS, hdev, &ev,
1743                                   sizeof(ev), skip);
1744 }
1745
1746 int mgmt_new_settings(struct hci_dev *hdev)
1747 {
1748         return new_settings(hdev, NULL);
1749 }
1750
1751 struct cmd_lookup {
1752         struct sock *sk;
1753         struct hci_dev *hdev;
1754         u8 mgmt_status;
1755 };
1756
1757 static void settings_rsp(struct mgmt_pending_cmd *cmd, void *data)
1758 {
1759         struct cmd_lookup *match = data;
1760
1761         send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
1762
1763         list_del(&cmd->list);
1764
1765         if (match->sk == NULL) {
1766                 match->sk = cmd->sk;
1767                 sock_hold(match->sk);
1768         }
1769
1770         mgmt_pending_free(cmd);
1771 }
1772
1773 static void cmd_status_rsp(struct mgmt_pending_cmd *cmd, void *data)
1774 {
1775         u8 *status = data;
1776
1777         mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
1778         mgmt_pending_remove(cmd);
1779 }
1780
1781 static void cmd_complete_rsp(struct mgmt_pending_cmd *cmd, void *data)
1782 {
1783         if (cmd->cmd_complete) {
1784                 u8 *status = data;
1785
1786                 cmd->cmd_complete(cmd, *status);
1787                 mgmt_pending_remove(cmd);
1788
1789                 return;
1790         }
1791
1792         cmd_status_rsp(cmd, data);
1793 }
1794
1795 static int generic_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1796 {
1797         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1798                                  cmd->param, cmd->param_len);
1799 }
1800
1801 static int addr_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1802 {
1803         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1804                                  cmd->param, sizeof(struct mgmt_addr_info));
1805 }
1806
1807 static u8 mgmt_bredr_support(struct hci_dev *hdev)
1808 {
1809         if (!lmp_bredr_capable(hdev))
1810                 return MGMT_STATUS_NOT_SUPPORTED;
1811         else if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1812                 return MGMT_STATUS_REJECTED;
1813         else
1814                 return MGMT_STATUS_SUCCESS;
1815 }
1816
1817 static u8 mgmt_le_support(struct hci_dev *hdev)
1818 {
1819         if (!lmp_le_capable(hdev))
1820                 return MGMT_STATUS_NOT_SUPPORTED;
1821         else if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1822                 return MGMT_STATUS_REJECTED;
1823         else
1824                 return MGMT_STATUS_SUCCESS;
1825 }
1826
1827 static void set_discoverable_complete(struct hci_dev *hdev, u8 status,
1828                                       u16 opcode)
1829 {
1830         struct mgmt_pending_cmd *cmd;
1831         struct mgmt_mode *cp;
1832         struct hci_request req;
1833         bool changed;
1834
1835         BT_DBG("status 0x%02x", status);
1836
1837         hci_dev_lock(hdev);
1838
1839         cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
1840         if (!cmd)
1841                 goto unlock;
1842
1843         if (status) {
1844                 u8 mgmt_err = mgmt_status(status);
1845                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
1846                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1847                 goto remove_cmd;
1848         }
1849
1850         cp = cmd->param;
1851         if (cp->val) {
1852                 changed = !hci_dev_test_and_set_flag(hdev, HCI_DISCOVERABLE);
1853
1854                 if (hdev->discov_timeout > 0) {
1855                         int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1856                         queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1857                                            to);
1858                 }
1859         } else {
1860                 changed = hci_dev_test_and_clear_flag(hdev, HCI_DISCOVERABLE);
1861         }
1862
1863         send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1864
1865         if (changed)
1866                 new_settings(hdev, cmd->sk);
1867
1868         /* When the discoverable mode gets changed, make sure
1869          * that class of device has the limited discoverable
1870          * bit correctly set. Also update page scan based on whitelist
1871          * entries.
1872          */
1873         hci_req_init(&req, hdev);
1874         __hci_update_page_scan(&req);
1875         update_class(&req);
1876         hci_req_run(&req, NULL);
1877
1878 remove_cmd:
1879         mgmt_pending_remove(cmd);
1880
1881 unlock:
1882         hci_dev_unlock(hdev);
1883 }
1884
1885 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
1886                             u16 len)
1887 {
1888         struct mgmt_cp_set_discoverable *cp = data;
1889         struct mgmt_pending_cmd *cmd;
1890         struct hci_request req;
1891         u16 timeout;
1892         u8 scan;
1893         int err;
1894
1895         BT_DBG("request for %s", hdev->name);
1896
1897         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
1898             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1899                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1900                                        MGMT_STATUS_REJECTED);
1901
1902         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
1903                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1904                                        MGMT_STATUS_INVALID_PARAMS);
1905
1906         timeout = __le16_to_cpu(cp->timeout);
1907
1908         /* Disabling discoverable requires that no timeout is set,
1909          * and enabling limited discoverable requires a timeout.
1910          */
1911         if ((cp->val == 0x00 && timeout > 0) ||
1912             (cp->val == 0x02 && timeout == 0))
1913                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1914                                        MGMT_STATUS_INVALID_PARAMS);
1915
1916         hci_dev_lock(hdev);
1917
1918         if (!hdev_is_powered(hdev) && timeout > 0) {
1919                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1920                                       MGMT_STATUS_NOT_POWERED);
1921                 goto failed;
1922         }
1923
1924         if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1925             pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1926                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1927                                       MGMT_STATUS_BUSY);
1928                 goto failed;
1929         }
1930
1931         if (!hci_dev_test_flag(hdev, HCI_CONNECTABLE)) {
1932                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1933                                       MGMT_STATUS_REJECTED);
1934                 goto failed;
1935         }
1936
1937         if (!hdev_is_powered(hdev)) {
1938                 bool changed = false;
1939
1940                 /* Setting limited discoverable when powered off is
1941                  * not a valid operation since it requires a timeout
1942                  * and so no need to check HCI_LIMITED_DISCOVERABLE.
1943                  */
1944                 if (!!cp->val != hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) {
1945                         hci_dev_change_flag(hdev, HCI_DISCOVERABLE);
1946                         changed = true;
1947                 }
1948
1949                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1950                 if (err < 0)
1951                         goto failed;
1952
1953                 if (changed)
1954                         err = new_settings(hdev, sk);
1955
1956                 goto failed;
1957         }
1958
1959         /* If the current mode is the same, then just update the timeout
1960          * value with the new value. And if only the timeout gets updated,
1961          * then no need for any HCI transactions.
1962          */
1963         if (!!cp->val == hci_dev_test_flag(hdev, HCI_DISCOVERABLE) &&
1964             (cp->val == 0x02) == hci_dev_test_flag(hdev,
1965                                                    HCI_LIMITED_DISCOVERABLE)) {
1966                 cancel_delayed_work(&hdev->discov_off);
1967                 hdev->discov_timeout = timeout;
1968
1969                 if (cp->val && hdev->discov_timeout > 0) {
1970                         int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1971                         queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1972                                            to);
1973                 }
1974
1975                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1976                 goto failed;
1977         }
1978
1979         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
1980         if (!cmd) {
1981                 err = -ENOMEM;
1982                 goto failed;
1983         }
1984
1985         /* Cancel any potential discoverable timeout that might be
1986          * still active and store new timeout value. The arming of
1987          * the timeout happens in the complete handler.
1988          */
1989         cancel_delayed_work(&hdev->discov_off);
1990         hdev->discov_timeout = timeout;
1991
1992         /* Limited discoverable mode */
1993         if (cp->val == 0x02)
1994                 hci_dev_set_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1995         else
1996                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1997
1998         hci_req_init(&req, hdev);
1999
2000         /* The procedure for LE-only controllers is much simpler - just
2001          * update the advertising data.
2002          */
2003         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2004                 goto update_ad;
2005
2006         scan = SCAN_PAGE;
2007
2008         if (cp->val) {
2009                 struct hci_cp_write_current_iac_lap hci_cp;
2010
2011                 if (cp->val == 0x02) {
2012                         /* Limited discoverable mode */
2013                         hci_cp.num_iac = min_t(u8, hdev->num_iac, 2);
2014                         hci_cp.iac_lap[0] = 0x00;       /* LIAC */
2015                         hci_cp.iac_lap[1] = 0x8b;
2016                         hci_cp.iac_lap[2] = 0x9e;
2017                         hci_cp.iac_lap[3] = 0x33;       /* GIAC */
2018                         hci_cp.iac_lap[4] = 0x8b;
2019                         hci_cp.iac_lap[5] = 0x9e;
2020                 } else {
2021                         /* General discoverable mode */
2022                         hci_cp.num_iac = 1;
2023                         hci_cp.iac_lap[0] = 0x33;       /* GIAC */
2024                         hci_cp.iac_lap[1] = 0x8b;
2025                         hci_cp.iac_lap[2] = 0x9e;
2026                 }
2027
2028                 hci_req_add(&req, HCI_OP_WRITE_CURRENT_IAC_LAP,
2029                             (hci_cp.num_iac * 3) + 1, &hci_cp);
2030
2031                 scan |= SCAN_INQUIRY;
2032         } else {
2033                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2034         }
2035
2036         hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
2037
2038 update_ad:
2039         update_adv_data(&req);
2040
2041         err = hci_req_run(&req, set_discoverable_complete);
2042         if (err < 0)
2043                 mgmt_pending_remove(cmd);
2044
2045 failed:
2046         hci_dev_unlock(hdev);
2047         return err;
2048 }
2049
2050 static void write_fast_connectable(struct hci_request *req, bool enable)
2051 {
2052         struct hci_dev *hdev = req->hdev;
2053         struct hci_cp_write_page_scan_activity acp;
2054         u8 type;
2055
2056         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2057                 return;
2058
2059         if (hdev->hci_ver < BLUETOOTH_VER_1_2)
2060                 return;
2061
2062         if (enable) {
2063                 type = PAGE_SCAN_TYPE_INTERLACED;
2064
2065                 /* 160 msec page scan interval */
2066                 acp.interval = cpu_to_le16(0x0100);
2067         } else {
2068                 type = PAGE_SCAN_TYPE_STANDARD; /* default */
2069
2070                 /* default 1.28 sec page scan */
2071                 acp.interval = cpu_to_le16(0x0800);
2072         }
2073
2074         acp.window = cpu_to_le16(0x0012);
2075
2076         if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval ||
2077             __cpu_to_le16(hdev->page_scan_window) != acp.window)
2078                 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
2079                             sizeof(acp), &acp);
2080
2081         if (hdev->page_scan_type != type)
2082                 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
2083 }
2084
2085 static void set_connectable_complete(struct hci_dev *hdev, u8 status,
2086                                      u16 opcode)
2087 {
2088         struct mgmt_pending_cmd *cmd;
2089         struct mgmt_mode *cp;
2090         bool conn_changed, discov_changed;
2091
2092         BT_DBG("status 0x%02x", status);
2093
2094         hci_dev_lock(hdev);
2095
2096         cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
2097         if (!cmd)
2098                 goto unlock;
2099
2100         if (status) {
2101                 u8 mgmt_err = mgmt_status(status);
2102                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
2103                 goto remove_cmd;
2104         }
2105
2106         cp = cmd->param;
2107         if (cp->val) {
2108                 conn_changed = !hci_dev_test_and_set_flag(hdev,
2109                                                           HCI_CONNECTABLE);
2110                 discov_changed = false;
2111         } else {
2112                 conn_changed = hci_dev_test_and_clear_flag(hdev,
2113                                                            HCI_CONNECTABLE);
2114                 discov_changed = hci_dev_test_and_clear_flag(hdev,
2115                                                              HCI_DISCOVERABLE);
2116         }
2117
2118         send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
2119
2120         if (conn_changed || discov_changed) {
2121                 new_settings(hdev, cmd->sk);
2122                 hci_update_page_scan(hdev);
2123                 if (discov_changed)
2124                         mgmt_update_adv_data(hdev);
2125                 hci_update_background_scan(hdev);
2126         }
2127
2128 remove_cmd:
2129         mgmt_pending_remove(cmd);
2130
2131 unlock:
2132         hci_dev_unlock(hdev);
2133 }
2134
2135 static int set_connectable_update_settings(struct hci_dev *hdev,
2136                                            struct sock *sk, u8 val)
2137 {
2138         bool changed = false;
2139         int err;
2140
2141         if (!!val != hci_dev_test_flag(hdev, HCI_CONNECTABLE))
2142                 changed = true;
2143
2144         if (val) {
2145                 hci_dev_set_flag(hdev, HCI_CONNECTABLE);
2146         } else {
2147                 hci_dev_clear_flag(hdev, HCI_CONNECTABLE);
2148                 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2149         }
2150
2151         err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
2152         if (err < 0)
2153                 return err;
2154
2155         if (changed) {
2156                 hci_update_page_scan(hdev);
2157                 hci_update_background_scan(hdev);
2158                 return new_settings(hdev, sk);
2159         }
2160
2161         return 0;
2162 }
2163
2164 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
2165                            u16 len)
2166 {
2167         struct mgmt_mode *cp = data;
2168         struct mgmt_pending_cmd *cmd;
2169         struct hci_request req;
2170         u8 scan;
2171         int err;
2172
2173         BT_DBG("request for %s", hdev->name);
2174
2175         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
2176             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2177                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2178                                        MGMT_STATUS_REJECTED);
2179
2180         if (cp->val != 0x00 && cp->val != 0x01)
2181                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2182                                        MGMT_STATUS_INVALID_PARAMS);
2183
2184         hci_dev_lock(hdev);
2185
2186         if (!hdev_is_powered(hdev)) {
2187                 err = set_connectable_update_settings(hdev, sk, cp->val);
2188                 goto failed;
2189         }
2190
2191         if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
2192             pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
2193                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2194                                       MGMT_STATUS_BUSY);
2195                 goto failed;
2196         }
2197
2198         cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
2199         if (!cmd) {
2200                 err = -ENOMEM;
2201                 goto failed;
2202         }
2203
2204         hci_req_init(&req, hdev);
2205
2206         /* If BR/EDR is not enabled and we disable advertising as a
2207          * by-product of disabling connectable, we need to update the
2208          * advertising flags.
2209          */
2210         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2211                 if (!cp->val) {
2212                         hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2213                         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2214                 }
2215                 update_adv_data(&req);
2216         } else if (cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
2217                 if (cp->val) {
2218                         scan = SCAN_PAGE;
2219                 } else {
2220                         /* If we don't have any whitelist entries just
2221                          * disable all scanning. If there are entries
2222                          * and we had both page and inquiry scanning
2223                          * enabled then fall back to only page scanning.
2224                          * Otherwise no changes are needed.
2225                          */
2226                         if (list_empty(&hdev->whitelist))
2227                                 scan = SCAN_DISABLED;
2228                         else if (test_bit(HCI_ISCAN, &hdev->flags))
2229                                 scan = SCAN_PAGE;
2230                         else
2231                                 goto no_scan_update;
2232
2233                         if (test_bit(HCI_ISCAN, &hdev->flags) &&
2234                             hdev->discov_timeout > 0)
2235                                 cancel_delayed_work(&hdev->discov_off);
2236                 }
2237
2238                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
2239         }
2240
2241 no_scan_update:
2242         /* Update the advertising parameters if necessary */
2243         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
2244             hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
2245                 enable_advertising(&req);
2246
2247         err = hci_req_run(&req, set_connectable_complete);
2248         if (err < 0) {
2249                 mgmt_pending_remove(cmd);
2250                 if (err == -ENODATA)
2251                         err = set_connectable_update_settings(hdev, sk,
2252                                                               cp->val);
2253                 goto failed;
2254         }
2255
2256 failed:
2257         hci_dev_unlock(hdev);
2258         return err;
2259 }
2260
2261 static int set_bondable(struct sock *sk, struct hci_dev *hdev, void *data,
2262                         u16 len)
2263 {
2264         struct mgmt_mode *cp = data;
2265         bool changed;
2266         int err;
2267
2268         BT_DBG("request for %s", hdev->name);
2269
2270         if (cp->val != 0x00 && cp->val != 0x01)
2271                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BONDABLE,
2272                                        MGMT_STATUS_INVALID_PARAMS);
2273
2274         hci_dev_lock(hdev);
2275
2276         if (cp->val)
2277                 changed = !hci_dev_test_and_set_flag(hdev, HCI_BONDABLE);
2278         else
2279                 changed = hci_dev_test_and_clear_flag(hdev, HCI_BONDABLE);
2280
2281         err = send_settings_rsp(sk, MGMT_OP_SET_BONDABLE, hdev);
2282         if (err < 0)
2283                 goto unlock;
2284
2285         if (changed)
2286                 err = new_settings(hdev, sk);
2287
2288 unlock:
2289         hci_dev_unlock(hdev);
2290         return err;
2291 }
2292
2293 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
2294                              u16 len)
2295 {
2296         struct mgmt_mode *cp = data;
2297         struct mgmt_pending_cmd *cmd;
2298         u8 val, status;
2299         int err;
2300
2301         BT_DBG("request for %s", hdev->name);
2302
2303         status = mgmt_bredr_support(hdev);
2304         if (status)
2305                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2306                                        status);
2307
2308         if (cp->val != 0x00 && cp->val != 0x01)
2309                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2310                                        MGMT_STATUS_INVALID_PARAMS);
2311
2312         hci_dev_lock(hdev);
2313
2314         if (!hdev_is_powered(hdev)) {
2315                 bool changed = false;
2316
2317                 if (!!cp->val != hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) {
2318                         hci_dev_change_flag(hdev, HCI_LINK_SECURITY);
2319                         changed = true;
2320                 }
2321
2322                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2323                 if (err < 0)
2324                         goto failed;
2325
2326                 if (changed)
2327                         err = new_settings(hdev, sk);
2328
2329                 goto failed;
2330         }
2331
2332         if (pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
2333                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2334                                       MGMT_STATUS_BUSY);
2335                 goto failed;
2336         }
2337
2338         val = !!cp->val;
2339
2340         if (test_bit(HCI_AUTH, &hdev->flags) == val) {
2341                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2342                 goto failed;
2343         }
2344
2345         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
2346         if (!cmd) {
2347                 err = -ENOMEM;
2348                 goto failed;
2349         }
2350
2351         err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
2352         if (err < 0) {
2353                 mgmt_pending_remove(cmd);
2354                 goto failed;
2355         }
2356
2357 failed:
2358         hci_dev_unlock(hdev);
2359         return err;
2360 }
2361
2362 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2363 {
2364         struct mgmt_mode *cp = data;
2365         struct mgmt_pending_cmd *cmd;
2366         u8 status;
2367         int err;
2368
2369         BT_DBG("request for %s", hdev->name);
2370
2371         status = mgmt_bredr_support(hdev);
2372         if (status)
2373                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status);
2374
2375         if (!lmp_ssp_capable(hdev))
2376                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2377                                        MGMT_STATUS_NOT_SUPPORTED);
2378
2379         if (cp->val != 0x00 && cp->val != 0x01)
2380                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2381                                        MGMT_STATUS_INVALID_PARAMS);
2382
2383         hci_dev_lock(hdev);
2384
2385         if (!hdev_is_powered(hdev)) {
2386                 bool changed;
2387
2388                 if (cp->val) {
2389                         changed = !hci_dev_test_and_set_flag(hdev,
2390                                                              HCI_SSP_ENABLED);
2391                 } else {
2392                         changed = hci_dev_test_and_clear_flag(hdev,
2393                                                               HCI_SSP_ENABLED);
2394                         if (!changed)
2395                                 changed = hci_dev_test_and_clear_flag(hdev,
2396                                                                       HCI_HS_ENABLED);
2397                         else
2398                                 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
2399                 }
2400
2401                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2402                 if (err < 0)
2403                         goto failed;
2404
2405                 if (changed)
2406                         err = new_settings(hdev, sk);
2407
2408                 goto failed;
2409         }
2410
2411         if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2412                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2413                                       MGMT_STATUS_BUSY);
2414                 goto failed;
2415         }
2416
2417         if (!!cp->val == hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
2418                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2419                 goto failed;
2420         }
2421
2422         cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
2423         if (!cmd) {
2424                 err = -ENOMEM;
2425                 goto failed;
2426         }
2427
2428         if (!cp->val && hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
2429                 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
2430                              sizeof(cp->val), &cp->val);
2431
2432         err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
2433         if (err < 0) {
2434                 mgmt_pending_remove(cmd);
2435                 goto failed;
2436         }
2437
2438 failed:
2439         hci_dev_unlock(hdev);
2440         return err;
2441 }
2442
2443 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2444 {
2445         struct mgmt_mode *cp = data;
2446         bool changed;
2447         u8 status;
2448         int err;
2449
2450         BT_DBG("request for %s", hdev->name);
2451
2452         status = mgmt_bredr_support(hdev);
2453         if (status)
2454                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
2455
2456         if (!lmp_ssp_capable(hdev))
2457                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2458                                        MGMT_STATUS_NOT_SUPPORTED);
2459
2460         if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
2461                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2462                                        MGMT_STATUS_REJECTED);
2463
2464         if (cp->val != 0x00 && cp->val != 0x01)
2465                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2466                                        MGMT_STATUS_INVALID_PARAMS);
2467
2468         hci_dev_lock(hdev);
2469
2470         if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2471                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2472                                       MGMT_STATUS_BUSY);
2473                 goto unlock;
2474         }
2475
2476         if (cp->val) {
2477                 changed = !hci_dev_test_and_set_flag(hdev, HCI_HS_ENABLED);
2478         } else {
2479                 if (hdev_is_powered(hdev)) {
2480                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2481                                               MGMT_STATUS_REJECTED);
2482                         goto unlock;
2483                 }
2484
2485                 changed = hci_dev_test_and_clear_flag(hdev, HCI_HS_ENABLED);
2486         }
2487
2488         err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
2489         if (err < 0)
2490                 goto unlock;
2491
2492         if (changed)
2493                 err = new_settings(hdev, sk);
2494
2495 unlock:
2496         hci_dev_unlock(hdev);
2497         return err;
2498 }
2499
2500 static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2501 {
2502         struct cmd_lookup match = { NULL, hdev };
2503
2504         hci_dev_lock(hdev);
2505
2506         if (status) {
2507                 u8 mgmt_err = mgmt_status(status);
2508
2509                 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
2510                                      &mgmt_err);
2511                 goto unlock;
2512         }
2513
2514         mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
2515
2516         new_settings(hdev, match.sk);
2517
2518         if (match.sk)
2519                 sock_put(match.sk);
2520
2521         /* Make sure the controller has a good default for
2522          * advertising data. Restrict the update to when LE
2523          * has actually been enabled. During power on, the
2524          * update in powered_update_hci will take care of it.
2525          */
2526         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2527                 struct hci_request req;
2528
2529                 hci_req_init(&req, hdev);
2530                 update_adv_data(&req);
2531                 update_scan_rsp_data(&req);
2532                 __hci_update_background_scan(&req);
2533                 hci_req_run(&req, NULL);
2534         }
2535
2536 unlock:
2537         hci_dev_unlock(hdev);
2538 }
2539
2540 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2541 {
2542         struct mgmt_mode *cp = data;
2543         struct hci_cp_write_le_host_supported hci_cp;
2544         struct mgmt_pending_cmd *cmd;
2545         struct hci_request req;
2546         int err;
2547         u8 val, enabled;
2548
2549         BT_DBG("request for %s", hdev->name);
2550
2551         if (!lmp_le_capable(hdev))
2552                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2553                                        MGMT_STATUS_NOT_SUPPORTED);
2554
2555         if (cp->val != 0x00 && cp->val != 0x01)
2556                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2557                                        MGMT_STATUS_INVALID_PARAMS);
2558
2559         /* Bluetooth single mode LE only controllers or dual-mode
2560          * controllers configured as LE only devices, do not allow
2561          * switching LE off. These have either LE enabled explicitly
2562          * or BR/EDR has been previously switched off.
2563          *
2564          * When trying to enable an already enabled LE, then gracefully
2565          * send a positive response. Trying to disable it however will
2566          * result into rejection.
2567          */
2568         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2569                 if (cp->val == 0x01)
2570                         return send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2571
2572                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2573                                        MGMT_STATUS_REJECTED);
2574         }
2575
2576         hci_dev_lock(hdev);
2577
2578         val = !!cp->val;
2579         enabled = lmp_host_le_capable(hdev);
2580
2581         if (!val)
2582                 clear_adv_instance(hdev, NULL, 0x00, true);
2583
2584         if (!hdev_is_powered(hdev) || val == enabled) {
2585                 bool changed = false;
2586
2587                 if (val != hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2588                         hci_dev_change_flag(hdev, HCI_LE_ENABLED);
2589                         changed = true;
2590                 }
2591
2592                 if (!val && hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
2593                         hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2594                         changed = true;
2595                 }
2596
2597                 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2598                 if (err < 0)
2599                         goto unlock;
2600
2601                 if (changed)
2602                         err = new_settings(hdev, sk);
2603
2604                 goto unlock;
2605         }
2606
2607         if (pending_find(MGMT_OP_SET_LE, hdev) ||
2608             pending_find(MGMT_OP_SET_ADVERTISING, hdev)) {
2609                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2610                                       MGMT_STATUS_BUSY);
2611                 goto unlock;
2612         }
2613
2614         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
2615         if (!cmd) {
2616                 err = -ENOMEM;
2617                 goto unlock;
2618         }
2619
2620         hci_req_init(&req, hdev);
2621
2622         memset(&hci_cp, 0, sizeof(hci_cp));
2623
2624         if (val) {
2625                 hci_cp.le = val;
2626                 hci_cp.simul = 0x00;
2627         } else {
2628                 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
2629                         disable_advertising(&req);
2630         }
2631
2632         hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
2633                     &hci_cp);
2634
2635         err = hci_req_run(&req, le_enable_complete);
2636         if (err < 0)
2637                 mgmt_pending_remove(cmd);
2638
2639 unlock:
2640         hci_dev_unlock(hdev);
2641         return err;
2642 }
2643
2644 /* This is a helper function to test for pending mgmt commands that can
2645  * cause CoD or EIR HCI commands. We can only allow one such pending
2646  * mgmt command at a time since otherwise we cannot easily track what
2647  * the current values are, will be, and based on that calculate if a new
2648  * HCI command needs to be sent and if yes with what value.
2649  */
2650 static bool pending_eir_or_class(struct hci_dev *hdev)
2651 {
2652         struct mgmt_pending_cmd *cmd;
2653
2654         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
2655                 switch (cmd->opcode) {
2656                 case MGMT_OP_ADD_UUID:
2657                 case MGMT_OP_REMOVE_UUID:
2658                 case MGMT_OP_SET_DEV_CLASS:
2659                 case MGMT_OP_SET_POWERED:
2660                         return true;
2661                 }
2662         }
2663
2664         return false;
2665 }
2666
2667 static const u8 bluetooth_base_uuid[] = {
2668                         0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
2669                         0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2670 };
2671
2672 static u8 get_uuid_size(const u8 *uuid)
2673 {
2674         u32 val;
2675
2676         if (memcmp(uuid, bluetooth_base_uuid, 12))
2677                 return 128;
2678
2679         val = get_unaligned_le32(&uuid[12]);
2680         if (val > 0xffff)
2681                 return 32;
2682
2683         return 16;
2684 }
2685
2686 static void mgmt_class_complete(struct hci_dev *hdev, u16 mgmt_op, u8 status)
2687 {
2688         struct mgmt_pending_cmd *cmd;
2689
2690         hci_dev_lock(hdev);
2691
2692         cmd = pending_find(mgmt_op, hdev);
2693         if (!cmd)
2694                 goto unlock;
2695
2696         mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
2697                           mgmt_status(status), hdev->dev_class, 3);
2698
2699         mgmt_pending_remove(cmd);
2700
2701 unlock:
2702         hci_dev_unlock(hdev);
2703 }
2704
2705 static void add_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2706 {
2707         BT_DBG("status 0x%02x", status);
2708
2709         mgmt_class_complete(hdev, MGMT_OP_ADD_UUID, status);
2710 }
2711
2712 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2713 {
2714         struct mgmt_cp_add_uuid *cp = data;
2715         struct mgmt_pending_cmd *cmd;
2716         struct hci_request req;
2717         struct bt_uuid *uuid;
2718         int err;
2719
2720         BT_DBG("request for %s", hdev->name);
2721
2722         hci_dev_lock(hdev);
2723
2724         if (pending_eir_or_class(hdev)) {
2725                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
2726                                       MGMT_STATUS_BUSY);
2727                 goto failed;
2728         }
2729
2730         uuid = kmalloc(sizeof(*uuid), GFP_KERNEL);
2731         if (!uuid) {
2732                 err = -ENOMEM;
2733                 goto failed;
2734         }
2735
2736         memcpy(uuid->uuid, cp->uuid, 16);
2737         uuid->svc_hint = cp->svc_hint;
2738         uuid->size = get_uuid_size(cp->uuid);
2739
2740         list_add_tail(&uuid->list, &hdev->uuids);
2741
2742         hci_req_init(&req, hdev);
2743
2744         update_class(&req);
2745         update_eir(&req);
2746
2747         err = hci_req_run(&req, add_uuid_complete);
2748         if (err < 0) {
2749                 if (err != -ENODATA)
2750                         goto failed;
2751
2752                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
2753                                         hdev->dev_class, 3);
2754                 goto failed;
2755         }
2756
2757         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
2758         if (!cmd) {
2759                 err = -ENOMEM;
2760                 goto failed;
2761         }
2762
2763         err = 0;
2764
2765 failed:
2766         hci_dev_unlock(hdev);
2767         return err;
2768 }
2769
2770 static bool enable_service_cache(struct hci_dev *hdev)
2771 {
2772         if (!hdev_is_powered(hdev))
2773                 return false;
2774
2775         if (!hci_dev_test_and_set_flag(hdev, HCI_SERVICE_CACHE)) {
2776                 queue_delayed_work(hdev->workqueue, &hdev->service_cache,
2777                                    CACHE_TIMEOUT);
2778                 return true;
2779         }
2780
2781         return false;
2782 }
2783
2784 static void remove_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2785 {
2786         BT_DBG("status 0x%02x", status);
2787
2788         mgmt_class_complete(hdev, MGMT_OP_REMOVE_UUID, status);
2789 }
2790
2791 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
2792                        u16 len)
2793 {
2794         struct mgmt_cp_remove_uuid *cp = data;
2795         struct mgmt_pending_cmd *cmd;
2796         struct bt_uuid *match, *tmp;
2797         u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
2798         struct hci_request req;
2799         int err, found;
2800
2801         BT_DBG("request for %s", hdev->name);
2802
2803         hci_dev_lock(hdev);
2804
2805         if (pending_eir_or_class(hdev)) {
2806                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2807                                       MGMT_STATUS_BUSY);
2808                 goto unlock;
2809         }
2810
2811         if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
2812                 hci_uuids_clear(hdev);
2813
2814                 if (enable_service_cache(hdev)) {
2815                         err = mgmt_cmd_complete(sk, hdev->id,
2816                                                 MGMT_OP_REMOVE_UUID,
2817                                                 0, hdev->dev_class, 3);
2818                         goto unlock;
2819                 }
2820
2821                 goto update_class;
2822         }
2823
2824         found = 0;
2825
2826         list_for_each_entry_safe(match, tmp, &hdev->uuids, list) {
2827                 if (memcmp(match->uuid, cp->uuid, 16) != 0)
2828                         continue;
2829
2830                 list_del(&match->list);
2831                 kfree(match);
2832                 found++;
2833         }
2834
2835         if (found == 0) {
2836                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2837                                       MGMT_STATUS_INVALID_PARAMS);
2838                 goto unlock;
2839         }
2840
2841 update_class:
2842         hci_req_init(&req, hdev);
2843
2844         update_class(&req);
2845         update_eir(&req);
2846
2847         err = hci_req_run(&req, remove_uuid_complete);
2848         if (err < 0) {
2849                 if (err != -ENODATA)
2850                         goto unlock;
2851
2852                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
2853                                         hdev->dev_class, 3);
2854                 goto unlock;
2855         }
2856
2857         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
2858         if (!cmd) {
2859                 err = -ENOMEM;
2860                 goto unlock;
2861         }
2862
2863         err = 0;
2864
2865 unlock:
2866         hci_dev_unlock(hdev);
2867         return err;
2868 }
2869
2870 static void set_class_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2871 {
2872         BT_DBG("status 0x%02x", status);
2873
2874         mgmt_class_complete(hdev, MGMT_OP_SET_DEV_CLASS, status);
2875 }
2876
2877 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
2878                          u16 len)
2879 {
2880         struct mgmt_cp_set_dev_class *cp = data;
2881         struct mgmt_pending_cmd *cmd;
2882         struct hci_request req;
2883         int err;
2884
2885         BT_DBG("request for %s", hdev->name);
2886
2887         if (!lmp_bredr_capable(hdev))
2888                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2889                                        MGMT_STATUS_NOT_SUPPORTED);
2890
2891         hci_dev_lock(hdev);
2892
2893         if (pending_eir_or_class(hdev)) {
2894                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2895                                       MGMT_STATUS_BUSY);
2896                 goto unlock;
2897         }
2898
2899         if ((cp->minor & 0x03) != 0 || (cp->major & 0xe0) != 0) {
2900                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2901                                       MGMT_STATUS_INVALID_PARAMS);
2902                 goto unlock;
2903         }
2904
2905         hdev->major_class = cp->major;
2906         hdev->minor_class = cp->minor;
2907
2908         if (!hdev_is_powered(hdev)) {
2909                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2910                                         hdev->dev_class, 3);
2911                 goto unlock;
2912         }
2913
2914         hci_req_init(&req, hdev);
2915
2916         if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
2917                 hci_dev_unlock(hdev);
2918                 cancel_delayed_work_sync(&hdev->service_cache);
2919                 hci_dev_lock(hdev);
2920                 update_eir(&req);
2921         }
2922
2923         update_class(&req);
2924
2925         err = hci_req_run(&req, set_class_complete);
2926         if (err < 0) {
2927                 if (err != -ENODATA)
2928                         goto unlock;
2929
2930                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2931                                         hdev->dev_class, 3);
2932                 goto unlock;
2933         }
2934
2935         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
2936         if (!cmd) {
2937                 err = -ENOMEM;
2938                 goto unlock;
2939         }
2940
2941         err = 0;
2942
2943 unlock:
2944         hci_dev_unlock(hdev);
2945         return err;
2946 }
2947
2948 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
2949                           u16 len)
2950 {
2951         struct mgmt_cp_load_link_keys *cp = data;
2952         const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
2953                                    sizeof(struct mgmt_link_key_info));
2954         u16 key_count, expected_len;
2955         bool changed;
2956         int i;
2957
2958         BT_DBG("request for %s", hdev->name);
2959
2960         if (!lmp_bredr_capable(hdev))
2961                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2962                                        MGMT_STATUS_NOT_SUPPORTED);
2963
2964         key_count = __le16_to_cpu(cp->key_count);
2965         if (key_count > max_key_count) {
2966                 BT_ERR("load_link_keys: too big key_count value %u",
2967                        key_count);
2968                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2969                                        MGMT_STATUS_INVALID_PARAMS);
2970         }
2971
2972         expected_len = sizeof(*cp) + key_count *
2973                                         sizeof(struct mgmt_link_key_info);
2974         if (expected_len != len) {
2975                 BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
2976                        expected_len, len);
2977                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2978                                        MGMT_STATUS_INVALID_PARAMS);
2979         }
2980
2981         if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
2982                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2983                                        MGMT_STATUS_INVALID_PARAMS);
2984
2985         BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
2986                key_count);
2987
2988         for (i = 0; i < key_count; i++) {
2989                 struct mgmt_link_key_info *key = &cp->keys[i];
2990
2991                 if (key->addr.type != BDADDR_BREDR || key->type > 0x08)
2992                         return mgmt_cmd_status(sk, hdev->id,
2993                                                MGMT_OP_LOAD_LINK_KEYS,
2994                                                MGMT_STATUS_INVALID_PARAMS);
2995         }
2996
2997         hci_dev_lock(hdev);
2998
2999         hci_link_keys_clear(hdev);
3000
3001         if (cp->debug_keys)
3002                 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
3003         else
3004                 changed = hci_dev_test_and_clear_flag(hdev,
3005                                                       HCI_KEEP_DEBUG_KEYS);
3006
3007         if (changed)
3008                 new_settings(hdev, NULL);
3009
3010         for (i = 0; i < key_count; i++) {
3011                 struct mgmt_link_key_info *key = &cp->keys[i];
3012
3013                 /* Always ignore debug keys and require a new pairing if
3014                  * the user wants to use them.
3015                  */
3016                 if (key->type == HCI_LK_DEBUG_COMBINATION)
3017                         continue;
3018
3019                 hci_add_link_key(hdev, NULL, &key->addr.bdaddr, key->val,
3020                                  key->type, key->pin_len, NULL);
3021         }
3022
3023         mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
3024
3025         hci_dev_unlock(hdev);
3026
3027         return 0;
3028 }
3029
3030 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
3031                            u8 addr_type, struct sock *skip_sk)
3032 {
3033         struct mgmt_ev_device_unpaired ev;
3034
3035         bacpy(&ev.addr.bdaddr, bdaddr);
3036         ev.addr.type = addr_type;
3037
3038         return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
3039                           skip_sk);
3040 }
3041
3042 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3043                          u16 len)
3044 {
3045         struct mgmt_cp_unpair_device *cp = data;
3046         struct mgmt_rp_unpair_device rp;
3047         struct hci_cp_disconnect dc;
3048         struct mgmt_pending_cmd *cmd;
3049         struct hci_conn *conn;
3050         int err;
3051
3052         memset(&rp, 0, sizeof(rp));
3053         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3054         rp.addr.type = cp->addr.type;
3055
3056         if (!bdaddr_type_is_valid(cp->addr.type))
3057                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3058                                          MGMT_STATUS_INVALID_PARAMS,
3059                                          &rp, sizeof(rp));
3060
3061         if (cp->disconnect != 0x00 && cp->disconnect != 0x01)
3062                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3063                                          MGMT_STATUS_INVALID_PARAMS,
3064                                          &rp, sizeof(rp));
3065
3066         hci_dev_lock(hdev);
3067
3068         if (!hdev_is_powered(hdev)) {
3069                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3070                                         MGMT_STATUS_NOT_POWERED, &rp,
3071                                         sizeof(rp));
3072                 goto unlock;
3073         }
3074
3075         if (cp->addr.type == BDADDR_BREDR) {
3076                 /* If disconnection is requested, then look up the
3077                  * connection. If the remote device is connected, it
3078                  * will be later used to terminate the link.
3079                  *
3080                  * Setting it to NULL explicitly will cause no
3081                  * termination of the link.
3082                  */
3083                 if (cp->disconnect)
3084                         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3085                                                        &cp->addr.bdaddr);
3086                 else
3087                         conn = NULL;
3088
3089                 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
3090         } else {
3091                 u8 addr_type;
3092
3093                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
3094                                                &cp->addr.bdaddr);
3095                 if (conn) {
3096                         /* Defer clearing up the connection parameters
3097                          * until closing to give a chance of keeping
3098                          * them if a repairing happens.
3099                          */
3100                         set_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3101
3102                         /* If disconnection is not requested, then
3103                          * clear the connection variable so that the
3104                          * link is not terminated.
3105                          */
3106                         if (!cp->disconnect)
3107                                 conn = NULL;
3108                 }
3109
3110                 if (cp->addr.type == BDADDR_LE_PUBLIC)
3111                         addr_type = ADDR_LE_DEV_PUBLIC;
3112                 else
3113                         addr_type = ADDR_LE_DEV_RANDOM;
3114
3115                 hci_remove_irk(hdev, &cp->addr.bdaddr, addr_type);
3116
3117                 err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type);
3118         }
3119
3120         if (err < 0) {
3121                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3122                                         MGMT_STATUS_NOT_PAIRED, &rp,
3123                                         sizeof(rp));
3124                 goto unlock;
3125         }
3126
3127         /* If the connection variable is set, then termination of the
3128          * link is requested.
3129          */
3130         if (!conn) {
3131                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
3132                                         &rp, sizeof(rp));
3133                 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
3134                 goto unlock;
3135         }
3136
3137         cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
3138                                sizeof(*cp));
3139         if (!cmd) {
3140                 err = -ENOMEM;
3141                 goto unlock;
3142         }
3143
3144         cmd->cmd_complete = addr_cmd_complete;
3145
3146         dc.handle = cpu_to_le16(conn->handle);
3147         dc.reason = 0x13; /* Remote User Terminated Connection */
3148         err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
3149         if (err < 0)
3150                 mgmt_pending_remove(cmd);
3151
3152 unlock:
3153         hci_dev_unlock(hdev);
3154         return err;
3155 }
3156
3157 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
3158                       u16 len)
3159 {
3160         struct mgmt_cp_disconnect *cp = data;
3161         struct mgmt_rp_disconnect rp;
3162         struct mgmt_pending_cmd *cmd;
3163         struct hci_conn *conn;
3164         int err;
3165
3166         BT_DBG("");
3167
3168         memset(&rp, 0, sizeof(rp));
3169         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3170         rp.addr.type = cp->addr.type;
3171
3172         if (!bdaddr_type_is_valid(cp->addr.type))
3173                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3174                                          MGMT_STATUS_INVALID_PARAMS,
3175                                          &rp, sizeof(rp));
3176
3177         hci_dev_lock(hdev);
3178
3179         if (!test_bit(HCI_UP, &hdev->flags)) {
3180                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3181                                         MGMT_STATUS_NOT_POWERED, &rp,
3182                                         sizeof(rp));
3183                 goto failed;
3184         }
3185
3186         if (pending_find(MGMT_OP_DISCONNECT, hdev)) {
3187                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3188                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
3189                 goto failed;
3190         }
3191
3192         if (cp->addr.type == BDADDR_BREDR)
3193                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3194                                                &cp->addr.bdaddr);
3195         else
3196                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
3197
3198         if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) {
3199                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3200                                         MGMT_STATUS_NOT_CONNECTED, &rp,
3201                                         sizeof(rp));
3202                 goto failed;
3203         }
3204
3205         cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
3206         if (!cmd) {
3207                 err = -ENOMEM;
3208                 goto failed;
3209         }
3210
3211         cmd->cmd_complete = generic_cmd_complete;
3212
3213         err = hci_disconnect(conn, HCI_ERROR_REMOTE_USER_TERM);
3214         if (err < 0)
3215                 mgmt_pending_remove(cmd);
3216
3217 failed:
3218         hci_dev_unlock(hdev);
3219         return err;
3220 }
3221
3222 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
3223 {
3224         switch (link_type) {
3225         case LE_LINK:
3226                 switch (addr_type) {
3227                 case ADDR_LE_DEV_PUBLIC:
3228                         return BDADDR_LE_PUBLIC;
3229
3230                 default:
3231                         /* Fallback to LE Random address type */
3232                         return BDADDR_LE_RANDOM;
3233                 }
3234
3235         default:
3236                 /* Fallback to BR/EDR type */
3237                 return BDADDR_BREDR;
3238         }
3239 }
3240
3241 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
3242                            u16 data_len)
3243 {
3244         struct mgmt_rp_get_connections *rp;
3245         struct hci_conn *c;
3246         size_t rp_len;
3247         int err;
3248         u16 i;
3249
3250         BT_DBG("");
3251
3252         hci_dev_lock(hdev);
3253
3254         if (!hdev_is_powered(hdev)) {
3255                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
3256                                       MGMT_STATUS_NOT_POWERED);
3257                 goto unlock;
3258         }
3259
3260         i = 0;
3261         list_for_each_entry(c, &hdev->conn_hash.list, list) {
3262                 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3263                         i++;
3264         }
3265
3266         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3267         rp = kmalloc(rp_len, GFP_KERNEL);
3268         if (!rp) {
3269                 err = -ENOMEM;
3270                 goto unlock;
3271         }
3272
3273         i = 0;
3274         list_for_each_entry(c, &hdev->conn_hash.list, list) {
3275                 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3276                         continue;
3277                 bacpy(&rp->addr[i].bdaddr, &c->dst);
3278                 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
3279                 if (c->type == SCO_LINK || c->type == ESCO_LINK)
3280                         continue;
3281                 i++;
3282         }
3283
3284         rp->conn_count = cpu_to_le16(i);
3285
3286         /* Recalculate length in case of filtered SCO connections, etc */
3287         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3288
3289         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
3290                                 rp_len);
3291
3292         kfree(rp);
3293
3294 unlock:
3295         hci_dev_unlock(hdev);
3296         return err;
3297 }
3298
3299 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3300                                    struct mgmt_cp_pin_code_neg_reply *cp)
3301 {
3302         struct mgmt_pending_cmd *cmd;
3303         int err;
3304
3305         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
3306                                sizeof(*cp));
3307         if (!cmd)
3308                 return -ENOMEM;
3309
3310         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3311                            sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
3312         if (err < 0)
3313                 mgmt_pending_remove(cmd);
3314
3315         return err;
3316 }
3317
3318 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3319                           u16 len)
3320 {
3321         struct hci_conn *conn;
3322         struct mgmt_cp_pin_code_reply *cp = data;
3323         struct hci_cp_pin_code_reply reply;
3324         struct mgmt_pending_cmd *cmd;
3325         int err;
3326
3327         BT_DBG("");
3328
3329         hci_dev_lock(hdev);
3330
3331         if (!hdev_is_powered(hdev)) {
3332                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3333                                       MGMT_STATUS_NOT_POWERED);
3334                 goto failed;
3335         }
3336
3337         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
3338         if (!conn) {
3339                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3340                                       MGMT_STATUS_NOT_CONNECTED);
3341                 goto failed;
3342         }
3343
3344         if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
3345                 struct mgmt_cp_pin_code_neg_reply ncp;
3346
3347                 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
3348
3349                 BT_ERR("PIN code is not 16 bytes long");
3350
3351                 err = send_pin_code_neg_reply(sk, hdev, &ncp);
3352                 if (err >= 0)
3353                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3354                                               MGMT_STATUS_INVALID_PARAMS);
3355
3356                 goto failed;
3357         }
3358
3359         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
3360         if (!cmd) {
3361                 err = -ENOMEM;
3362                 goto failed;
3363         }
3364
3365         cmd->cmd_complete = addr_cmd_complete;
3366
3367         bacpy(&reply.bdaddr, &cp->addr.bdaddr);
3368         reply.pin_len = cp->pin_len;
3369         memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
3370
3371         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
3372         if (err < 0)
3373                 mgmt_pending_remove(cmd);
3374
3375 failed:
3376         hci_dev_unlock(hdev);
3377         return err;
3378 }
3379
3380 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
3381                              u16 len)
3382 {
3383         struct mgmt_cp_set_io_capability *cp = data;
3384
3385         BT_DBG("");
3386
3387         if (cp->io_capability > SMP_IO_KEYBOARD_DISPLAY)
3388                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY,
3389                                          MGMT_STATUS_INVALID_PARAMS, NULL, 0);
3390
3391         hci_dev_lock(hdev);
3392
3393         hdev->io_capability = cp->io_capability;
3394
3395         BT_DBG("%s IO capability set to 0x%02x", hdev->name,
3396                hdev->io_capability);
3397
3398         hci_dev_unlock(hdev);
3399
3400         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0,
3401                                  NULL, 0);
3402 }
3403
3404 static struct mgmt_pending_cmd *find_pairing(struct hci_conn *conn)
3405 {
3406         struct hci_dev *hdev = conn->hdev;
3407         struct mgmt_pending_cmd *cmd;
3408
3409         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
3410                 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
3411                         continue;
3412
3413                 if (cmd->user_data != conn)
3414                         continue;
3415
3416                 return cmd;
3417         }
3418
3419         return NULL;
3420 }
3421
3422 static int pairing_complete(struct mgmt_pending_cmd *cmd, u8 status)
3423 {
3424         struct mgmt_rp_pair_device rp;
3425         struct hci_conn *conn = cmd->user_data;
3426         int err;
3427
3428         bacpy(&rp.addr.bdaddr, &conn->dst);
3429         rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
3430
3431         err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE,
3432                                 status, &rp, sizeof(rp));
3433
3434         /* So we don't get further callbacks for this connection */
3435         conn->connect_cfm_cb = NULL;
3436         conn->security_cfm_cb = NULL;
3437         conn->disconn_cfm_cb = NULL;
3438
3439         hci_conn_drop(conn);
3440
3441         /* The device is paired so there is no need to remove
3442          * its connection parameters anymore.
3443          */
3444         clear_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3445
3446         hci_conn_put(conn);
3447
3448         return err;
3449 }
3450
3451 void mgmt_smp_complete(struct hci_conn *conn, bool complete)
3452 {
3453         u8 status = complete ? MGMT_STATUS_SUCCESS : MGMT_STATUS_FAILED;
3454         struct mgmt_pending_cmd *cmd;
3455
3456         cmd = find_pairing(conn);
3457         if (cmd) {
3458                 cmd->cmd_complete(cmd, status);
3459                 mgmt_pending_remove(cmd);
3460         }
3461 }
3462
3463 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
3464 {
3465         struct mgmt_pending_cmd *cmd;
3466
3467         BT_DBG("status %u", status);
3468
3469         cmd = find_pairing(conn);
3470         if (!cmd) {
3471                 BT_DBG("Unable to find a pending command");
3472                 return;
3473         }
3474
3475         cmd->cmd_complete(cmd, mgmt_status(status));
3476         mgmt_pending_remove(cmd);
3477 }
3478
3479 static void le_pairing_complete_cb(struct hci_conn *conn, u8 status)
3480 {
3481         struct mgmt_pending_cmd *cmd;
3482
3483         BT_DBG("status %u", status);
3484
3485         if (!status)
3486                 return;
3487
3488         cmd = find_pairing(conn);
3489         if (!cmd) {
3490                 BT_DBG("Unable to find a pending command");
3491                 return;
3492         }
3493
3494         cmd->cmd_complete(cmd, mgmt_status(status));
3495         mgmt_pending_remove(cmd);
3496 }
3497
3498 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3499                        u16 len)
3500 {
3501         struct mgmt_cp_pair_device *cp = data;
3502         struct mgmt_rp_pair_device rp;
3503         struct mgmt_pending_cmd *cmd;
3504         u8 sec_level, auth_type;
3505         struct hci_conn *conn;
3506         int err;
3507
3508         BT_DBG("");
3509
3510         memset(&rp, 0, sizeof(rp));
3511         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3512         rp.addr.type = cp->addr.type;
3513
3514         if (!bdaddr_type_is_valid(cp->addr.type))
3515                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3516                                          MGMT_STATUS_INVALID_PARAMS,
3517                                          &rp, sizeof(rp));
3518
3519         if (cp->io_cap > SMP_IO_KEYBOARD_DISPLAY)
3520                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3521                                          MGMT_STATUS_INVALID_PARAMS,
3522                                          &rp, sizeof(rp));
3523
3524         hci_dev_lock(hdev);
3525
3526         if (!hdev_is_powered(hdev)) {
3527                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3528                                         MGMT_STATUS_NOT_POWERED, &rp,
3529                                         sizeof(rp));
3530                 goto unlock;
3531         }
3532
3533         if (hci_bdaddr_is_paired(hdev, &cp->addr.bdaddr, cp->addr.type)) {
3534                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3535                                         MGMT_STATUS_ALREADY_PAIRED, &rp,
3536                                         sizeof(rp));
3537                 goto unlock;
3538         }
3539
3540         sec_level = BT_SECURITY_MEDIUM;
3541         auth_type = HCI_AT_DEDICATED_BONDING;
3542
3543         if (cp->addr.type == BDADDR_BREDR) {
3544                 conn = hci_connect_acl(hdev, &cp->addr.bdaddr, sec_level,
3545                                        auth_type);
3546         } else {
3547                 u8 addr_type;
3548
3549                 /* Convert from L2CAP channel address type to HCI address type
3550                  */
3551                 if (cp->addr.type == BDADDR_LE_PUBLIC)
3552                         addr_type = ADDR_LE_DEV_PUBLIC;
3553                 else
3554                         addr_type = ADDR_LE_DEV_RANDOM;
3555
3556                 /* When pairing a new device, it is expected to remember
3557                  * this device for future connections. Adding the connection
3558                  * parameter information ahead of time allows tracking
3559                  * of the slave preferred values and will speed up any
3560                  * further connection establishment.
3561                  *
3562                  * If connection parameters already exist, then they
3563                  * will be kept and this function does nothing.
3564                  */
3565                 hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
3566
3567                 conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type,
3568                                       sec_level, HCI_LE_CONN_TIMEOUT,
3569                                       HCI_ROLE_MASTER);
3570         }
3571
3572         if (IS_ERR(conn)) {
3573                 int status;
3574
3575                 if (PTR_ERR(conn) == -EBUSY)
3576                         status = MGMT_STATUS_BUSY;
3577                 else if (PTR_ERR(conn) == -EOPNOTSUPP)
3578                         status = MGMT_STATUS_NOT_SUPPORTED;
3579                 else if (PTR_ERR(conn) == -ECONNREFUSED)
3580                         status = MGMT_STATUS_REJECTED;
3581                 else
3582                         status = MGMT_STATUS_CONNECT_FAILED;
3583
3584                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3585                                         status, &rp, sizeof(rp));
3586                 goto unlock;
3587         }
3588
3589         if (conn->connect_cfm_cb) {
3590                 hci_conn_drop(conn);
3591                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3592                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
3593                 goto unlock;
3594         }
3595
3596         cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
3597         if (!cmd) {
3598                 err = -ENOMEM;
3599                 hci_conn_drop(conn);
3600                 goto unlock;
3601         }
3602
3603         cmd->cmd_complete = pairing_complete;
3604
3605         /* For LE, just connecting isn't a proof that the pairing finished */
3606         if (cp->addr.type == BDADDR_BREDR) {
3607                 conn->connect_cfm_cb = pairing_complete_cb;
3608                 conn->security_cfm_cb = pairing_complete_cb;
3609                 conn->disconn_cfm_cb = pairing_complete_cb;
3610         } else {
3611                 conn->connect_cfm_cb = le_pairing_complete_cb;
3612                 conn->security_cfm_cb = le_pairing_complete_cb;
3613                 conn->disconn_cfm_cb = le_pairing_complete_cb;
3614         }
3615
3616         conn->io_capability = cp->io_cap;
3617         cmd->user_data = hci_conn_get(conn);
3618
3619         if ((conn->state == BT_CONNECTED || conn->state == BT_CONFIG) &&
3620             hci_conn_security(conn, sec_level, auth_type, true)) {
3621                 cmd->cmd_complete(cmd, 0);
3622                 mgmt_pending_remove(cmd);
3623         }
3624
3625         err = 0;
3626
3627 unlock:
3628         hci_dev_unlock(hdev);
3629         return err;
3630 }
3631
3632 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3633                               u16 len)
3634 {
3635         struct mgmt_addr_info *addr = data;
3636         struct mgmt_pending_cmd *cmd;
3637         struct hci_conn *conn;
3638         int err;
3639
3640         BT_DBG("");
3641
3642         hci_dev_lock(hdev);
3643
3644         if (!hdev_is_powered(hdev)) {
3645                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3646                                       MGMT_STATUS_NOT_POWERED);
3647                 goto unlock;
3648         }
3649
3650         cmd = pending_find(MGMT_OP_PAIR_DEVICE, hdev);
3651         if (!cmd) {
3652                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3653                                       MGMT_STATUS_INVALID_PARAMS);
3654                 goto unlock;
3655         }
3656
3657         conn = cmd->user_data;
3658
3659         if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
3660                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3661                                       MGMT_STATUS_INVALID_PARAMS);
3662                 goto unlock;
3663         }
3664
3665         cmd->cmd_complete(cmd, MGMT_STATUS_CANCELLED);
3666         mgmt_pending_remove(cmd);
3667
3668         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
3669                                 addr, sizeof(*addr));
3670 unlock:
3671         hci_dev_unlock(hdev);
3672         return err;
3673 }
3674
3675 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
3676                              struct mgmt_addr_info *addr, u16 mgmt_op,
3677                              u16 hci_op, __le32 passkey)
3678 {
3679         struct mgmt_pending_cmd *cmd;
3680         struct hci_conn *conn;
3681         int err;
3682
3683         hci_dev_lock(hdev);
3684
3685         if (!hdev_is_powered(hdev)) {
3686                 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3687                                         MGMT_STATUS_NOT_POWERED, addr,
3688                                         sizeof(*addr));
3689                 goto done;
3690         }
3691
3692         if (addr->type == BDADDR_BREDR)
3693                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
3694         else
3695                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
3696
3697         if (!conn) {
3698                 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3699                                         MGMT_STATUS_NOT_CONNECTED, addr,
3700                                         sizeof(*addr));
3701                 goto done;
3702         }
3703
3704         if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
3705                 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
3706                 if (!err)
3707                         err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3708                                                 MGMT_STATUS_SUCCESS, addr,
3709                                                 sizeof(*addr));
3710                 else
3711                         err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3712                                                 MGMT_STATUS_FAILED, addr,
3713                                                 sizeof(*addr));
3714
3715                 goto done;
3716         }
3717
3718         cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
3719         if (!cmd) {
3720                 err = -ENOMEM;
3721                 goto done;
3722         }
3723
3724         cmd->cmd_complete = addr_cmd_complete;
3725
3726         /* Continue with pairing via HCI */
3727         if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
3728                 struct hci_cp_user_passkey_reply cp;
3729
3730                 bacpy(&cp.bdaddr, &addr->bdaddr);
3731                 cp.passkey = passkey;
3732                 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
3733         } else
3734                 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
3735                                    &addr->bdaddr);
3736
3737         if (err < 0)
3738                 mgmt_pending_remove(cmd);
3739
3740 done:
3741         hci_dev_unlock(hdev);
3742         return err;
3743 }
3744
3745 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3746                               void *data, u16 len)
3747 {
3748         struct mgmt_cp_pin_code_neg_reply *cp = data;
3749
3750         BT_DBG("");
3751
3752         return user_pairing_resp(sk, hdev, &cp->addr,
3753                                 MGMT_OP_PIN_CODE_NEG_REPLY,
3754                                 HCI_OP_PIN_CODE_NEG_REPLY, 0);
3755 }
3756
3757 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3758                               u16 len)
3759 {
3760         struct mgmt_cp_user_confirm_reply *cp = data;
3761
3762         BT_DBG("");
3763
3764         if (len != sizeof(*cp))
3765                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
3766                                        MGMT_STATUS_INVALID_PARAMS);
3767
3768         return user_pairing_resp(sk, hdev, &cp->addr,
3769                                  MGMT_OP_USER_CONFIRM_REPLY,
3770                                  HCI_OP_USER_CONFIRM_REPLY, 0);
3771 }
3772
3773 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
3774                                   void *data, u16 len)
3775 {
3776         struct mgmt_cp_user_confirm_neg_reply *cp = data;
3777
3778         BT_DBG("");
3779
3780         return user_pairing_resp(sk, hdev, &cp->addr,
3781                                  MGMT_OP_USER_CONFIRM_NEG_REPLY,
3782                                  HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
3783 }
3784
3785 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3786                               u16 len)
3787 {
3788         struct mgmt_cp_user_passkey_reply *cp = data;
3789
3790         BT_DBG("");
3791
3792         return user_pairing_resp(sk, hdev, &cp->addr,
3793                                  MGMT_OP_USER_PASSKEY_REPLY,
3794                                  HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
3795 }
3796
3797 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
3798                                   void *data, u16 len)
3799 {
3800         struct mgmt_cp_user_passkey_neg_reply *cp = data;
3801
3802         BT_DBG("");
3803
3804         return user_pairing_resp(sk, hdev, &cp->addr,
3805                                  MGMT_OP_USER_PASSKEY_NEG_REPLY,
3806                                  HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
3807 }
3808
3809 static void update_name(struct hci_request *req)
3810 {
3811         struct hci_dev *hdev = req->hdev;
3812         struct hci_cp_write_local_name cp;
3813
3814         memcpy(cp.name, hdev->dev_name, sizeof(cp.name));
3815
3816         hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
3817 }
3818
3819 static void set_name_complete(struct hci_dev *hdev, u8 status, u16 opcode)
3820 {
3821         struct mgmt_cp_set_local_name *cp;
3822         struct mgmt_pending_cmd *cmd;
3823
3824         BT_DBG("status 0x%02x", status);
3825
3826         hci_dev_lock(hdev);
3827
3828         cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
3829         if (!cmd)
3830                 goto unlock;
3831
3832         cp = cmd->param;
3833
3834         if (status)
3835                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3836                                 mgmt_status(status));
3837         else
3838                 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3839                                   cp, sizeof(*cp));
3840
3841         mgmt_pending_remove(cmd);
3842
3843 unlock:
3844         hci_dev_unlock(hdev);
3845 }
3846
3847 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
3848                           u16 len)
3849 {
3850         struct mgmt_cp_set_local_name *cp = data;
3851         struct mgmt_pending_cmd *cmd;
3852         struct hci_request req;
3853         int err;
3854
3855         BT_DBG("");
3856
3857         hci_dev_lock(hdev);
3858
3859         /* If the old values are the same as the new ones just return a
3860          * direct command complete event.
3861          */
3862         if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
3863             !memcmp(hdev->short_name, cp->short_name,
3864                     sizeof(hdev->short_name))) {
3865                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3866                                         data, len);
3867                 goto failed;
3868         }
3869
3870         memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
3871
3872         if (!hdev_is_powered(hdev)) {
3873                 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3874
3875                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3876                                         data, len);
3877                 if (err < 0)
3878                         goto failed;
3879
3880                 err = mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev,
3881                                          data, len, sk);
3882
3883                 goto failed;
3884         }
3885
3886         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
3887         if (!cmd) {
3888                 err = -ENOMEM;
3889                 goto failed;
3890         }
3891
3892         memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3893
3894         hci_req_init(&req, hdev);
3895
3896         if (lmp_bredr_capable(hdev)) {
3897                 update_name(&req);
3898                 update_eir(&req);
3899         }
3900
3901         /* The name is stored in the scan response data and so
3902          * no need to udpate the advertising data here.
3903          */
3904         if (lmp_le_capable(hdev))
3905                 update_scan_rsp_data(&req);
3906
3907         err = hci_req_run(&req, set_name_complete);
3908         if (err < 0)
3909                 mgmt_pending_remove(cmd);
3910
3911 failed:
3912         hci_dev_unlock(hdev);
3913         return err;
3914 }
3915
3916 static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
3917                                          u16 opcode, struct sk_buff *skb)
3918 {
3919         struct mgmt_rp_read_local_oob_data mgmt_rp;
3920         size_t rp_size = sizeof(mgmt_rp);
3921         struct mgmt_pending_cmd *cmd;
3922
3923         BT_DBG("%s status %u", hdev->name, status);
3924
3925         cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
3926         if (!cmd)
3927                 return;
3928
3929         if (status || !skb) {
3930                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3931                                 status ? mgmt_status(status) : MGMT_STATUS_FAILED);
3932                 goto remove;
3933         }
3934
3935         memset(&mgmt_rp, 0, sizeof(mgmt_rp));
3936
3937         if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
3938                 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
3939
3940                 if (skb->len < sizeof(*rp)) {
3941                         mgmt_cmd_status(cmd->sk, hdev->id,
3942                                         MGMT_OP_READ_LOCAL_OOB_DATA,
3943                                         MGMT_STATUS_FAILED);
3944                         goto remove;
3945                 }
3946
3947                 memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
3948                 memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
3949
3950                 rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
3951         } else {
3952                 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
3953
3954                 if (skb->len < sizeof(*rp)) {
3955                         mgmt_cmd_status(cmd->sk, hdev->id,
3956                                         MGMT_OP_READ_LOCAL_OOB_DATA,
3957                                         MGMT_STATUS_FAILED);
3958                         goto remove;
3959                 }
3960
3961                 memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
3962                 memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
3963
3964                 memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
3965                 memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
3966         }
3967
3968         mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3969                           MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
3970
3971 remove:
3972         mgmt_pending_remove(cmd);
3973 }
3974
3975 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
3976                                void *data, u16 data_len)
3977 {
3978         struct mgmt_pending_cmd *cmd;
3979         struct hci_request req;
3980         int err;
3981
3982         BT_DBG("%s", hdev->name);
3983
3984         hci_dev_lock(hdev);
3985
3986         if (!hdev_is_powered(hdev)) {
3987                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3988                                       MGMT_STATUS_NOT_POWERED);
3989                 goto unlock;
3990         }
3991
3992         if (!lmp_ssp_capable(hdev)) {
3993                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3994                                       MGMT_STATUS_NOT_SUPPORTED);
3995                 goto unlock;
3996         }
3997
3998         if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
3999                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
4000                                       MGMT_STATUS_BUSY);
4001                 goto unlock;
4002         }
4003
4004         cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
4005         if (!cmd) {
4006                 err = -ENOMEM;
4007                 goto unlock;
4008         }
4009
4010         hci_req_init(&req, hdev);
4011
4012         if (bredr_sc_enabled(hdev))
4013                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
4014         else
4015                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
4016
4017         err = hci_req_run_skb(&req, read_local_oob_data_complete);
4018         if (err < 0)
4019                 mgmt_pending_remove(cmd);
4020
4021 unlock:
4022         hci_dev_unlock(hdev);
4023         return err;
4024 }
4025
4026 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4027                                void *data, u16 len)
4028 {
4029         struct mgmt_addr_info *addr = data;
4030         int err;
4031
4032         BT_DBG("%s ", hdev->name);
4033
4034         if (!bdaddr_type_is_valid(addr->type))
4035                 return mgmt_cmd_complete(sk, hdev->id,
4036                                          MGMT_OP_ADD_REMOTE_OOB_DATA,
4037                                          MGMT_STATUS_INVALID_PARAMS,
4038                                          addr, sizeof(*addr));
4039
4040         hci_dev_lock(hdev);
4041
4042         if (len == MGMT_ADD_REMOTE_OOB_DATA_SIZE) {
4043                 struct mgmt_cp_add_remote_oob_data *cp = data;
4044                 u8 status;
4045
4046                 if (cp->addr.type != BDADDR_BREDR) {
4047                         err = mgmt_cmd_complete(sk, hdev->id,
4048                                                 MGMT_OP_ADD_REMOTE_OOB_DATA,
4049                                                 MGMT_STATUS_INVALID_PARAMS,
4050                                                 &cp->addr, sizeof(cp->addr));
4051                         goto unlock;
4052                 }
4053
4054                 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4055                                               cp->addr.type, cp->hash,
4056                                               cp->rand, NULL, NULL);
4057                 if (err < 0)
4058                         status = MGMT_STATUS_FAILED;
4059                 else
4060                         status = MGMT_STATUS_SUCCESS;
4061
4062                 err = mgmt_cmd_complete(sk, hdev->id,
4063                                         MGMT_OP_ADD_REMOTE_OOB_DATA, status,
4064                                         &cp->addr, sizeof(cp->addr));
4065         } else if (len == MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE) {
4066                 struct mgmt_cp_add_remote_oob_ext_data *cp = data;
4067                 u8 *rand192, *hash192, *rand256, *hash256;
4068                 u8 status;
4069
4070                 if (bdaddr_type_is_le(cp->addr.type)) {
4071                         /* Enforce zero-valued 192-bit parameters as
4072                          * long as legacy SMP OOB isn't implemented.
4073                          */
4074                         if (memcmp(cp->rand192, ZERO_KEY, 16) ||
4075                             memcmp(cp->hash192, ZERO_KEY, 16)) {
4076                                 err = mgmt_cmd_complete(sk, hdev->id,
4077                                                         MGMT_OP_ADD_REMOTE_OOB_DATA,
4078                                                         MGMT_STATUS_INVALID_PARAMS,
4079                                                         addr, sizeof(*addr));
4080                                 goto unlock;
4081                         }
4082
4083                         rand192 = NULL;
4084                         hash192 = NULL;
4085                 } else {
4086                         /* In case one of the P-192 values is set to zero,
4087                          * then just disable OOB data for P-192.
4088                          */
4089                         if (!memcmp(cp->rand192, ZERO_KEY, 16) ||
4090                             !memcmp(cp->hash192, ZERO_KEY, 16)) {
4091                                 rand192 = NULL;
4092                                 hash192 = NULL;
4093                         } else {
4094                                 rand192 = cp->rand192;
4095                                 hash192 = cp->hash192;
4096                         }
4097                 }
4098
4099                 /* In case one of the P-256 values is set to zero, then just
4100                  * disable OOB data for P-256.
4101                  */
4102                 if (!memcmp(cp->rand256, ZERO_KEY, 16) ||
4103                     !memcmp(cp->hash256, ZERO_KEY, 16)) {
4104                         rand256 = NULL;
4105                         hash256 = NULL;
4106                 } else {
4107                         rand256 = cp->rand256;
4108                         hash256 = cp->hash256;
4109                 }
4110
4111                 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4112                                               cp->addr.type, hash192, rand192,
4113                                               hash256, rand256);
4114                 if (err < 0)
4115                         status = MGMT_STATUS_FAILED;
4116                 else
4117                         status = MGMT_STATUS_SUCCESS;
4118
4119                 err = mgmt_cmd_complete(sk, hdev->id,
4120                                         MGMT_OP_ADD_REMOTE_OOB_DATA,
4121                                         status, &cp->addr, sizeof(cp->addr));
4122         } else {
4123                 BT_ERR("add_remote_oob_data: invalid length of %u bytes", len);
4124                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
4125                                       MGMT_STATUS_INVALID_PARAMS);
4126         }
4127
4128 unlock:
4129         hci_dev_unlock(hdev);
4130         return err;
4131 }
4132
4133 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4134                                   void *data, u16 len)
4135 {
4136         struct mgmt_cp_remove_remote_oob_data *cp = data;
4137         u8 status;
4138         int err;
4139
4140         BT_DBG("%s", hdev->name);
4141
4142         if (cp->addr.type != BDADDR_BREDR)
4143                 return mgmt_cmd_complete(sk, hdev->id,
4144                                          MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4145                                          MGMT_STATUS_INVALID_PARAMS,
4146                                          &cp->addr, sizeof(cp->addr));
4147
4148         hci_dev_lock(hdev);
4149
4150         if (!bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
4151                 hci_remote_oob_data_clear(hdev);
4152                 status = MGMT_STATUS_SUCCESS;
4153                 goto done;
4154         }
4155
4156         err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr, cp->addr.type);
4157         if (err < 0)
4158                 status = MGMT_STATUS_INVALID_PARAMS;
4159         else
4160                 status = MGMT_STATUS_SUCCESS;
4161
4162 done:
4163         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4164                                 status, &cp->addr, sizeof(cp->addr));
4165
4166         hci_dev_unlock(hdev);
4167         return err;
4168 }
4169
4170 static bool trigger_bredr_inquiry(struct hci_request *req, u8 *status)
4171 {
4172         struct hci_dev *hdev = req->hdev;
4173         struct hci_cp_inquiry cp;
4174         /* General inquiry access code (GIAC) */
4175         u8 lap[3] = { 0x33, 0x8b, 0x9e };
4176
4177         *status = mgmt_bredr_support(hdev);
4178         if (*status)
4179                 return false;
4180
4181         if (hci_dev_test_flag(hdev, HCI_INQUIRY)) {
4182                 *status = MGMT_STATUS_BUSY;
4183                 return false;
4184         }
4185
4186         hci_inquiry_cache_flush(hdev);
4187
4188         memset(&cp, 0, sizeof(cp));
4189         memcpy(&cp.lap, lap, sizeof(cp.lap));
4190         cp.length = DISCOV_BREDR_INQUIRY_LEN;
4191
4192         hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
4193
4194         return true;
4195 }
4196
4197 static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status)
4198 {
4199         struct hci_dev *hdev = req->hdev;
4200         struct hci_cp_le_set_scan_param param_cp;
4201         struct hci_cp_le_set_scan_enable enable_cp;
4202         u8 own_addr_type;
4203         int err;
4204
4205         *status = mgmt_le_support(hdev);
4206         if (*status)
4207                 return false;
4208
4209         if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
4210                 /* Don't let discovery abort an outgoing connection attempt
4211                  * that's using directed advertising.
4212                  */
4213                 if (hci_lookup_le_connect(hdev)) {
4214                         *status = MGMT_STATUS_REJECTED;
4215                         return false;
4216                 }
4217
4218                 cancel_adv_timeout(hdev);
4219                 disable_advertising(req);
4220         }
4221
4222         /* If controller is scanning, it means the background scanning is
4223          * running. Thus, we should temporarily stop it in order to set the
4224          * discovery scanning parameters.
4225          */
4226         if (hci_dev_test_flag(hdev, HCI_LE_SCAN))
4227                 hci_req_add_le_scan_disable(req);
4228
4229         /* All active scans will be done with either a resolvable private
4230          * address (when privacy feature has been enabled) or non-resolvable
4231          * private address.
4232          */
4233         err = hci_update_random_address(req, true, &own_addr_type);
4234         if (err < 0) {
4235                 *status = MGMT_STATUS_FAILED;
4236                 return false;
4237         }
4238
4239         memset(&param_cp, 0, sizeof(param_cp));
4240         param_cp.type = LE_SCAN_ACTIVE;
4241         param_cp.interval = cpu_to_le16(interval);
4242         param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
4243         param_cp.own_address_type = own_addr_type;
4244
4245         hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
4246                     &param_cp);
4247
4248         memset(&enable_cp, 0, sizeof(enable_cp));
4249         enable_cp.enable = LE_SCAN_ENABLE;
4250         enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
4251
4252         hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
4253                     &enable_cp);
4254
4255         return true;
4256 }
4257
4258 static bool trigger_discovery(struct hci_request *req, u8 *status)
4259 {
4260         struct hci_dev *hdev = req->hdev;
4261
4262         switch (hdev->discovery.type) {
4263         case DISCOV_TYPE_BREDR:
4264                 if (!trigger_bredr_inquiry(req, status))
4265                         return false;
4266                 break;
4267
4268         case DISCOV_TYPE_INTERLEAVED:
4269                 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY,
4270                              &hdev->quirks)) {
4271                         /* During simultaneous discovery, we double LE scan
4272                          * interval. We must leave some time for the controller
4273                          * to do BR/EDR inquiry.
4274                          */
4275                         if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2,
4276                                              status))
4277                                 return false;
4278
4279                         if (!trigger_bredr_inquiry(req, status))
4280                                 return false;
4281
4282                         return true;
4283                 }
4284
4285                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
4286                         *status = MGMT_STATUS_NOT_SUPPORTED;
4287                         return false;
4288                 }
4289                 /* fall through */
4290
4291         case DISCOV_TYPE_LE:
4292                 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT, status))
4293                         return false;
4294                 break;
4295
4296         default:
4297                 *status = MGMT_STATUS_INVALID_PARAMS;
4298                 return false;
4299         }
4300
4301         return true;
4302 }
4303
4304 static void start_discovery_complete(struct hci_dev *hdev, u8 status,
4305                                      u16 opcode)
4306 {
4307         struct mgmt_pending_cmd *cmd;
4308         unsigned long timeout;
4309
4310         BT_DBG("status %d", status);
4311
4312         hci_dev_lock(hdev);
4313
4314         cmd = pending_find(MGMT_OP_START_DISCOVERY, hdev);
4315         if (!cmd)
4316                 cmd = pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev);
4317
4318         if (cmd) {
4319                 cmd->cmd_complete(cmd, mgmt_status(status));
4320                 mgmt_pending_remove(cmd);
4321         }
4322
4323         if (status) {
4324                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4325                 goto unlock;
4326         }
4327
4328         hci_discovery_set_state(hdev, DISCOVERY_FINDING);
4329
4330         /* If the scan involves LE scan, pick proper timeout to schedule
4331          * hdev->le_scan_disable that will stop it.
4332          */
4333         switch (hdev->discovery.type) {
4334         case DISCOV_TYPE_LE:
4335                 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4336                 break;
4337         case DISCOV_TYPE_INTERLEAVED:
4338                  /* When running simultaneous discovery, the LE scanning time
4339                  * should occupy the whole discovery time sine BR/EDR inquiry
4340                  * and LE scanning are scheduled by the controller.
4341                  *
4342                  * For interleaving discovery in comparison, BR/EDR inquiry
4343                  * and LE scanning are done sequentially with separate
4344                  * timeouts.
4345                  */
4346                 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
4347                         timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4348                 else
4349                         timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout);
4350                 break;
4351         case DISCOV_TYPE_BREDR:
4352                 timeout = 0;
4353                 break;
4354         default:
4355                 BT_ERR("Invalid discovery type %d", hdev->discovery.type);
4356                 timeout = 0;
4357                 break;
4358         }
4359
4360         if (timeout) {
4361                 /* When service discovery is used and the controller has
4362                  * a strict duplicate filter, it is important to remember
4363                  * the start and duration of the scan. This is required
4364                  * for restarting scanning during the discovery phase.
4365                  */
4366                 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER,
4367                              &hdev->quirks) &&
4368                     hdev->discovery.result_filtering) {
4369                         hdev->discovery.scan_start = jiffies;
4370                         hdev->discovery.scan_duration = timeout;
4371                 }
4372
4373                 queue_delayed_work(hdev->workqueue,
4374                                    &hdev->le_scan_disable, timeout);
4375         }
4376
4377 unlock:
4378         hci_dev_unlock(hdev);
4379 }
4380
4381 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
4382                            void *data, u16 len)
4383 {
4384         struct mgmt_cp_start_discovery *cp = data;
4385         struct mgmt_pending_cmd *cmd;
4386         struct hci_request req;
4387         u8 status;
4388         int err;
4389
4390         BT_DBG("%s", hdev->name);
4391
4392         hci_dev_lock(hdev);
4393
4394         if (!hdev_is_powered(hdev)) {
4395                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4396                                         MGMT_STATUS_NOT_POWERED,
4397                                         &cp->type, sizeof(cp->type));
4398                 goto failed;
4399         }
4400
4401         if (hdev->discovery.state != DISCOVERY_STOPPED ||
4402             hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4403                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4404                                         MGMT_STATUS_BUSY, &cp->type,
4405                                         sizeof(cp->type));
4406                 goto failed;
4407         }
4408
4409         cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len);
4410         if (!cmd) {
4411                 err = -ENOMEM;
4412                 goto failed;
4413         }
4414
4415         cmd->cmd_complete = generic_cmd_complete;
4416
4417         /* Clear the discovery filter first to free any previously
4418          * allocated memory for the UUID list.
4419          */
4420         hci_discovery_filter_clear(hdev);
4421
4422         hdev->discovery.type = cp->type;
4423         hdev->discovery.report_invalid_rssi = false;
4424
4425         hci_req_init(&req, hdev);
4426
4427         if (!trigger_discovery(&req, &status)) {
4428                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4429                                         status, &cp->type, sizeof(cp->type));
4430                 mgmt_pending_remove(cmd);
4431                 goto failed;
4432         }
4433
4434         err = hci_req_run(&req, start_discovery_complete);
4435         if (err < 0) {
4436                 mgmt_pending_remove(cmd);
4437                 goto failed;
4438         }
4439
4440         hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4441
4442 failed:
4443         hci_dev_unlock(hdev);
4444         return err;
4445 }
4446
4447 static int service_discovery_cmd_complete(struct mgmt_pending_cmd *cmd,
4448                                           u8 status)
4449 {
4450         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
4451                                  cmd->param, 1);
4452 }
4453
4454 static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
4455                                    void *data, u16 len)
4456 {
4457         struct mgmt_cp_start_service_discovery *cp = data;
4458         struct mgmt_pending_cmd *cmd;
4459         struct hci_request req;
4460         const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16);
4461         u16 uuid_count, expected_len;
4462         u8 status;
4463         int err;
4464
4465         BT_DBG("%s", hdev->name);
4466
4467         hci_dev_lock(hdev);
4468
4469         if (!hdev_is_powered(hdev)) {
4470                 err = mgmt_cmd_complete(sk, hdev->id,
4471                                         MGMT_OP_START_SERVICE_DISCOVERY,
4472                                         MGMT_STATUS_NOT_POWERED,
4473                                         &cp->type, sizeof(cp->type));
4474                 goto failed;
4475         }
4476
4477         if (hdev->discovery.state != DISCOVERY_STOPPED ||
4478             hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4479                 err = mgmt_cmd_complete(sk, hdev->id,
4480                                         MGMT_OP_START_SERVICE_DISCOVERY,
4481                                         MGMT_STATUS_BUSY, &cp->type,
4482                                         sizeof(cp->type));
4483                 goto failed;
4484         }
4485
4486         uuid_count = __le16_to_cpu(cp->uuid_count);
4487         if (uuid_count > max_uuid_count) {
4488                 BT_ERR("service_discovery: too big uuid_count value %u",
4489                        uuid_count);
4490                 err = mgmt_cmd_complete(sk, hdev->id,
4491                                         MGMT_OP_START_SERVICE_DISCOVERY,
4492                                         MGMT_STATUS_INVALID_PARAMS, &cp->type,
4493                                         sizeof(cp->type));
4494                 goto failed;
4495         }
4496
4497         expected_len = sizeof(*cp) + uuid_count * 16;
4498         if (expected_len != len) {
4499                 BT_ERR("service_discovery: expected %u bytes, got %u bytes",
4500                        expected_len, len);
4501                 err = mgmt_cmd_complete(sk, hdev->id,
4502                                         MGMT_OP_START_SERVICE_DISCOVERY,
4503                                         MGMT_STATUS_INVALID_PARAMS, &cp->type,
4504                                         sizeof(cp->type));
4505                 goto failed;
4506         }
4507
4508         cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
4509                                hdev, data, len);
4510         if (!cmd) {
4511                 err = -ENOMEM;
4512                 goto failed;
4513         }
4514
4515         cmd->cmd_complete = service_discovery_cmd_complete;
4516
4517         /* Clear the discovery filter first to free any previously
4518          * allocated memory for the UUID list.
4519          */
4520         hci_discovery_filter_clear(hdev);
4521
4522         hdev->discovery.result_filtering = true;
4523         hdev->discovery.type = cp->type;
4524         hdev->discovery.rssi = cp->rssi;
4525         hdev->discovery.uuid_count = uuid_count;
4526
4527         if (uuid_count > 0) {
4528                 hdev->discovery.uuids = kmemdup(cp->uuids, uuid_count * 16,
4529                                                 GFP_KERNEL);
4530                 if (!hdev->discovery.uuids) {
4531                         err = mgmt_cmd_complete(sk, hdev->id,
4532                                                 MGMT_OP_START_SERVICE_DISCOVERY,
4533                                                 MGMT_STATUS_FAILED,
4534                                                 &cp->type, sizeof(cp->type));
4535                         mgmt_pending_remove(cmd);
4536                         goto failed;
4537                 }
4538         }
4539
4540         hci_req_init(&req, hdev);
4541
4542         if (!trigger_discovery(&req, &status)) {
4543                 err = mgmt_cmd_complete(sk, hdev->id,
4544                                         MGMT_OP_START_SERVICE_DISCOVERY,
4545                                         status, &cp->type, sizeof(cp->type));
4546                 mgmt_pending_remove(cmd);
4547                 goto failed;
4548         }
4549
4550         err = hci_req_run(&req, start_discovery_complete);
4551         if (err < 0) {
4552                 mgmt_pending_remove(cmd);
4553                 goto failed;
4554         }
4555
4556         hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4557
4558 failed:
4559         hci_dev_unlock(hdev);
4560         return err;
4561 }
4562
4563 static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode)
4564 {
4565         struct mgmt_pending_cmd *cmd;
4566
4567         BT_DBG("status %d", status);
4568
4569         hci_dev_lock(hdev);
4570
4571         cmd = pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
4572         if (cmd) {
4573                 cmd->cmd_complete(cmd, mgmt_status(status));
4574                 mgmt_pending_remove(cmd);
4575         }
4576
4577         if (!status)
4578                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4579
4580         hci_dev_unlock(hdev);
4581 }
4582
4583 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
4584                           u16 len)
4585 {
4586         struct mgmt_cp_stop_discovery *mgmt_cp = data;
4587         struct mgmt_pending_cmd *cmd;
4588         struct hci_request req;
4589         int err;
4590
4591         BT_DBG("%s", hdev->name);
4592
4593         hci_dev_lock(hdev);
4594
4595         if (!hci_discovery_active(hdev)) {
4596                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4597                                         MGMT_STATUS_REJECTED, &mgmt_cp->type,
4598                                         sizeof(mgmt_cp->type));
4599                 goto unlock;
4600         }
4601
4602         if (hdev->discovery.type != mgmt_cp->type) {
4603                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4604                                         MGMT_STATUS_INVALID_PARAMS,
4605                                         &mgmt_cp->type, sizeof(mgmt_cp->type));
4606                 goto unlock;
4607         }
4608
4609         cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
4610         if (!cmd) {
4611                 err = -ENOMEM;
4612                 goto unlock;
4613         }
4614
4615         cmd->cmd_complete = generic_cmd_complete;
4616
4617         hci_req_init(&req, hdev);
4618
4619         hci_stop_discovery(&req);
4620
4621         err = hci_req_run(&req, stop_discovery_complete);
4622         if (!err) {
4623                 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
4624                 goto unlock;
4625         }
4626
4627         mgmt_pending_remove(cmd);
4628
4629         /* If no HCI commands were sent we're done */
4630         if (err == -ENODATA) {
4631                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
4632                                         &mgmt_cp->type, sizeof(mgmt_cp->type));
4633                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4634         }
4635
4636 unlock:
4637         hci_dev_unlock(hdev);
4638         return err;
4639 }
4640
4641 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
4642                         u16 len)
4643 {
4644         struct mgmt_cp_confirm_name *cp = data;
4645         struct inquiry_entry *e;
4646         int err;
4647
4648         BT_DBG("%s", hdev->name);
4649
4650         hci_dev_lock(hdev);
4651
4652         if (!hci_discovery_active(hdev)) {
4653                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4654                                         MGMT_STATUS_FAILED, &cp->addr,
4655                                         sizeof(cp->addr));
4656                 goto failed;
4657         }
4658
4659         e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
4660         if (!e) {
4661                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4662                                         MGMT_STATUS_INVALID_PARAMS, &cp->addr,
4663                                         sizeof(cp->addr));
4664                 goto failed;
4665         }
4666
4667         if (cp->name_known) {
4668                 e->name_state = NAME_KNOWN;
4669                 list_del(&e->list);
4670         } else {
4671                 e->name_state = NAME_NEEDED;
4672                 hci_inquiry_cache_update_resolve(hdev, e);
4673         }
4674
4675         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 0,
4676                                 &cp->addr, sizeof(cp->addr));
4677
4678 failed:
4679         hci_dev_unlock(hdev);
4680         return err;
4681 }
4682
4683 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
4684                         u16 len)
4685 {
4686         struct mgmt_cp_block_device *cp = data;
4687         u8 status;
4688         int err;
4689
4690         BT_DBG("%s", hdev->name);
4691
4692         if (!bdaddr_type_is_valid(cp->addr.type))
4693                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE,
4694                                          MGMT_STATUS_INVALID_PARAMS,
4695                                          &cp->addr, sizeof(cp->addr));
4696
4697         hci_dev_lock(hdev);
4698
4699         err = hci_bdaddr_list_add(&hdev->blacklist, &cp->addr.bdaddr,
4700                                   cp->addr.type);
4701         if (err < 0) {
4702                 status = MGMT_STATUS_FAILED;
4703                 goto done;
4704         }
4705
4706         mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4707                    sk);
4708         status = MGMT_STATUS_SUCCESS;
4709
4710 done:
4711         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
4712                                 &cp->addr, sizeof(cp->addr));
4713
4714         hci_dev_unlock(hdev);
4715
4716         return err;
4717 }
4718
4719 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
4720                           u16 len)
4721 {
4722         struct mgmt_cp_unblock_device *cp = data;
4723         u8 status;
4724         int err;
4725
4726         BT_DBG("%s", hdev->name);
4727
4728         if (!bdaddr_type_is_valid(cp->addr.type))
4729                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE,
4730                                          MGMT_STATUS_INVALID_PARAMS,
4731                                          &cp->addr, sizeof(cp->addr));
4732
4733         hci_dev_lock(hdev);
4734
4735         err = hci_bdaddr_list_del(&hdev->blacklist, &cp->addr.bdaddr,
4736                                   cp->addr.type);
4737         if (err < 0) {
4738                 status = MGMT_STATUS_INVALID_PARAMS;
4739                 goto done;
4740         }
4741
4742         mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4743                    sk);
4744         status = MGMT_STATUS_SUCCESS;
4745
4746 done:
4747         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
4748                                 &cp->addr, sizeof(cp->addr));
4749
4750         hci_dev_unlock(hdev);
4751
4752         return err;
4753 }
4754
4755 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
4756                          u16 len)
4757 {
4758         struct mgmt_cp_set_device_id *cp = data;
4759         struct hci_request req;
4760         int err;
4761         __u16 source;
4762
4763         BT_DBG("%s", hdev->name);
4764
4765         source = __le16_to_cpu(cp->source);
4766
4767         if (source > 0x0002)
4768                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
4769                                        MGMT_STATUS_INVALID_PARAMS);
4770
4771         hci_dev_lock(hdev);
4772
4773         hdev->devid_source = source;
4774         hdev->devid_vendor = __le16_to_cpu(cp->vendor);
4775         hdev->devid_product = __le16_to_cpu(cp->product);
4776         hdev->devid_version = __le16_to_cpu(cp->version);
4777
4778         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
4779                                 NULL, 0);
4780
4781         hci_req_init(&req, hdev);
4782         update_eir(&req);
4783         hci_req_run(&req, NULL);
4784
4785         hci_dev_unlock(hdev);
4786
4787         return err;
4788 }
4789
4790 static void enable_advertising_instance(struct hci_dev *hdev, u8 status,
4791                                         u16 opcode)
4792 {
4793         BT_DBG("status %d", status);
4794 }
4795
4796 static void set_advertising_complete(struct hci_dev *hdev, u8 status,
4797                                      u16 opcode)
4798 {
4799         struct cmd_lookup match = { NULL, hdev };
4800         struct hci_request req;
4801         u8 instance;
4802         struct adv_info *adv_instance;
4803         int err;
4804
4805         hci_dev_lock(hdev);
4806
4807         if (status) {
4808                 u8 mgmt_err = mgmt_status(status);
4809
4810                 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
4811                                      cmd_status_rsp, &mgmt_err);
4812                 goto unlock;
4813         }
4814
4815         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
4816                 hci_dev_set_flag(hdev, HCI_ADVERTISING);
4817         else
4818                 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
4819
4820         mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
4821                              &match);
4822
4823         new_settings(hdev, match.sk);
4824
4825         if (match.sk)
4826                 sock_put(match.sk);
4827
4828         /* If "Set Advertising" was just disabled and instance advertising was
4829          * set up earlier, then re-enable multi-instance advertising.
4830          */
4831         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
4832             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) ||
4833             list_empty(&hdev->adv_instances))
4834                 goto unlock;
4835
4836         instance = hdev->cur_adv_instance;
4837         if (!instance) {
4838                 adv_instance = list_first_entry_or_null(&hdev->adv_instances,
4839                                                         struct adv_info, list);
4840                 if (!adv_instance)
4841                         goto unlock;
4842
4843                 instance = adv_instance->instance;
4844         }
4845
4846         hci_req_init(&req, hdev);
4847
4848         err = schedule_adv_instance(&req, instance, true);
4849
4850         if (!err)
4851                 err = hci_req_run(&req, enable_advertising_instance);
4852
4853         if (err)
4854                 BT_ERR("Failed to re-configure advertising");
4855
4856 unlock:
4857         hci_dev_unlock(hdev);
4858 }
4859
4860 static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
4861                            u16 len)
4862 {
4863         struct mgmt_mode *cp = data;
4864         struct mgmt_pending_cmd *cmd;
4865         struct hci_request req;
4866         u8 val, status;
4867         int err;
4868
4869         BT_DBG("request for %s", hdev->name);
4870
4871         status = mgmt_le_support(hdev);
4872         if (status)
4873                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4874                                        status);
4875
4876         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
4877                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4878                                        MGMT_STATUS_INVALID_PARAMS);
4879
4880         hci_dev_lock(hdev);
4881
4882         val = !!cp->val;
4883
4884         /* The following conditions are ones which mean that we should
4885          * not do any HCI communication but directly send a mgmt
4886          * response to user space (after toggling the flag if
4887          * necessary).
4888          */
4889         if (!hdev_is_powered(hdev) ||
4890             (val == hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
4891              (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) ||
4892             hci_conn_num(hdev, LE_LINK) > 0 ||
4893             (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
4894              hdev->le_scan_type == LE_SCAN_ACTIVE)) {
4895                 bool changed;
4896
4897                 if (cp->val) {
4898                         changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
4899                         if (cp->val == 0x02)
4900                                 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4901                         else
4902                                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4903                 } else {
4904                         changed = hci_dev_test_and_clear_flag(hdev, HCI_ADVERTISING);
4905                         hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4906                 }
4907
4908                 err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
4909                 if (err < 0)
4910                         goto unlock;
4911
4912                 if (changed)
4913                         err = new_settings(hdev, sk);
4914
4915                 goto unlock;
4916         }
4917
4918         if (pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
4919             pending_find(MGMT_OP_SET_LE, hdev)) {
4920                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4921                                       MGMT_STATUS_BUSY);
4922                 goto unlock;
4923         }
4924
4925         cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
4926         if (!cmd) {
4927                 err = -ENOMEM;
4928                 goto unlock;
4929         }
4930
4931         hci_req_init(&req, hdev);
4932
4933         if (cp->val == 0x02)
4934                 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4935         else
4936                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4937
4938         cancel_adv_timeout(hdev);
4939
4940         if (val) {
4941                 /* Switch to instance "0" for the Set Advertising setting.
4942                  * We cannot use update_[adv|scan_rsp]_data() here as the
4943                  * HCI_ADVERTISING flag is not yet set.
4944                  */
4945                 update_inst_adv_data(&req, 0x00);
4946                 update_inst_scan_rsp_data(&req, 0x00);
4947                 enable_advertising(&req);
4948         } else {
4949                 disable_advertising(&req);
4950         }
4951
4952         err = hci_req_run(&req, set_advertising_complete);
4953         if (err < 0)
4954                 mgmt_pending_remove(cmd);
4955
4956 unlock:
4957         hci_dev_unlock(hdev);
4958         return err;
4959 }
4960
4961 static int set_static_address(struct sock *sk, struct hci_dev *hdev,
4962                               void *data, u16 len)
4963 {
4964         struct mgmt_cp_set_static_address *cp = data;
4965         int err;
4966
4967         BT_DBG("%s", hdev->name);
4968
4969         if (!lmp_le_capable(hdev))
4970                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4971                                        MGMT_STATUS_NOT_SUPPORTED);
4972
4973         if (hdev_is_powered(hdev))
4974                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4975                                        MGMT_STATUS_REJECTED);
4976
4977         if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
4978                 if (!bacmp(&cp->bdaddr, BDADDR_NONE))
4979                         return mgmt_cmd_status(sk, hdev->id,
4980                                                MGMT_OP_SET_STATIC_ADDRESS,
4981                                                MGMT_STATUS_INVALID_PARAMS);
4982
4983                 /* Two most significant bits shall be set */
4984                 if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
4985                         return mgmt_cmd_status(sk, hdev->id,
4986                                                MGMT_OP_SET_STATIC_ADDRESS,
4987                                                MGMT_STATUS_INVALID_PARAMS);
4988         }
4989
4990         hci_dev_lock(hdev);
4991
4992         bacpy(&hdev->static_addr, &cp->bdaddr);
4993
4994         err = send_settings_rsp(sk, MGMT_OP_SET_STATIC_ADDRESS, hdev);
4995         if (err < 0)
4996                 goto unlock;
4997
4998         err = new_settings(hdev, sk);
4999
5000 unlock:
5001         hci_dev_unlock(hdev);
5002         return err;
5003 }
5004
5005 static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
5006                            void *data, u16 len)
5007 {
5008         struct mgmt_cp_set_scan_params *cp = data;
5009         __u16 interval, window;
5010         int err;
5011
5012         BT_DBG("%s", hdev->name);
5013
5014         if (!lmp_le_capable(hdev))
5015                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5016                                        MGMT_STATUS_NOT_SUPPORTED);
5017
5018         interval = __le16_to_cpu(cp->interval);
5019
5020         if (interval < 0x0004 || interval > 0x4000)
5021                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5022                                        MGMT_STATUS_INVALID_PARAMS);
5023
5024         window = __le16_to_cpu(cp->window);
5025
5026         if (window < 0x0004 || window > 0x4000)
5027                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5028                                        MGMT_STATUS_INVALID_PARAMS);
5029
5030         if (window > interval)
5031                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5032                                        MGMT_STATUS_INVALID_PARAMS);
5033
5034         hci_dev_lock(hdev);
5035
5036         hdev->le_scan_interval = interval;
5037         hdev->le_scan_window = window;
5038
5039         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0,
5040                                 NULL, 0);
5041
5042         /* If background scan is running, restart it so new parameters are
5043          * loaded.
5044          */
5045         if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
5046             hdev->discovery.state == DISCOVERY_STOPPED) {
5047                 struct hci_request req;
5048
5049                 hci_req_init(&req, hdev);
5050
5051                 hci_req_add_le_scan_disable(&req);
5052                 hci_req_add_le_passive_scan(&req);
5053
5054                 hci_req_run(&req, NULL);
5055         }
5056
5057         hci_dev_unlock(hdev);
5058
5059         return err;
5060 }
5061
5062 static void fast_connectable_complete(struct hci_dev *hdev, u8 status,
5063                                       u16 opcode)
5064 {
5065         struct mgmt_pending_cmd *cmd;
5066
5067         BT_DBG("status 0x%02x", status);
5068
5069         hci_dev_lock(hdev);
5070
5071         cmd = pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5072         if (!cmd)
5073                 goto unlock;
5074
5075         if (status) {
5076                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5077                                 mgmt_status(status));
5078         } else {
5079                 struct mgmt_mode *cp = cmd->param;
5080
5081                 if (cp->val)
5082                         hci_dev_set_flag(hdev, HCI_FAST_CONNECTABLE);
5083                 else
5084                         hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5085
5086                 send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5087                 new_settings(hdev, cmd->sk);
5088         }
5089
5090         mgmt_pending_remove(cmd);
5091
5092 unlock:
5093         hci_dev_unlock(hdev);
5094 }
5095
5096 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
5097                                 void *data, u16 len)
5098 {
5099         struct mgmt_mode *cp = data;
5100         struct mgmt_pending_cmd *cmd;
5101         struct hci_request req;
5102         int err;
5103
5104         BT_DBG("%s", hdev->name);
5105
5106         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
5107             hdev->hci_ver < BLUETOOTH_VER_1_2)
5108                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5109                                        MGMT_STATUS_NOT_SUPPORTED);
5110
5111         if (cp->val != 0x00 && cp->val != 0x01)
5112                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5113                                        MGMT_STATUS_INVALID_PARAMS);
5114
5115         hci_dev_lock(hdev);
5116
5117         if (pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev)) {
5118                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5119                                       MGMT_STATUS_BUSY);
5120                 goto unlock;
5121         }
5122
5123         if (!!cp->val == hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) {
5124                 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5125                                         hdev);
5126                 goto unlock;
5127         }
5128
5129         if (!hdev_is_powered(hdev)) {
5130                 hci_dev_change_flag(hdev, HCI_FAST_CONNECTABLE);
5131                 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5132                                         hdev);
5133                 new_settings(hdev, sk);
5134                 goto unlock;
5135         }
5136
5137         cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
5138                                data, len);
5139         if (!cmd) {
5140                 err = -ENOMEM;
5141                 goto unlock;
5142         }
5143
5144         hci_req_init(&req, hdev);
5145
5146         write_fast_connectable(&req, cp->val);
5147
5148         err = hci_req_run(&req, fast_connectable_complete);
5149         if (err < 0) {
5150                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5151                                       MGMT_STATUS_FAILED);
5152                 mgmt_pending_remove(cmd);
5153         }
5154
5155 unlock:
5156         hci_dev_unlock(hdev);
5157
5158         return err;
5159 }
5160
5161 static void set_bredr_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5162 {
5163         struct mgmt_pending_cmd *cmd;
5164
5165         BT_DBG("status 0x%02x", status);
5166
5167         hci_dev_lock(hdev);
5168
5169         cmd = pending_find(MGMT_OP_SET_BREDR, hdev);
5170         if (!cmd)
5171                 goto unlock;
5172
5173         if (status) {
5174                 u8 mgmt_err = mgmt_status(status);
5175
5176                 /* We need to restore the flag if related HCI commands
5177                  * failed.
5178                  */
5179                 hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);
5180
5181                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
5182         } else {
5183                 send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
5184                 new_settings(hdev, cmd->sk);
5185         }
5186
5187         mgmt_pending_remove(cmd);
5188
5189 unlock:
5190         hci_dev_unlock(hdev);
5191 }
5192
5193 static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
5194 {
5195         struct mgmt_mode *cp = data;
5196         struct mgmt_pending_cmd *cmd;
5197         struct hci_request req;
5198         int err;
5199
5200         BT_DBG("request for %s", hdev->name);
5201
5202         if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
5203                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5204                                        MGMT_STATUS_NOT_SUPPORTED);
5205
5206         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5207                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5208                                        MGMT_STATUS_REJECTED);
5209
5210         if (cp->val != 0x00 && cp->val != 0x01)
5211                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5212                                        MGMT_STATUS_INVALID_PARAMS);
5213
5214         hci_dev_lock(hdev);
5215
5216         if (cp->val == hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5217                 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5218                 goto unlock;
5219         }
5220
5221         if (!hdev_is_powered(hdev)) {
5222                 if (!cp->val) {
5223                         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
5224                         hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
5225                         hci_dev_clear_flag(hdev, HCI_LINK_SECURITY);
5226                         hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5227                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
5228                 }
5229
5230                 hci_dev_change_flag(hdev, HCI_BREDR_ENABLED);
5231
5232                 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5233                 if (err < 0)
5234                         goto unlock;
5235
5236                 err = new_settings(hdev, sk);
5237                 goto unlock;
5238         }
5239
5240         /* Reject disabling when powered on */
5241         if (!cp->val) {
5242                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5243                                       MGMT_STATUS_REJECTED);
5244                 goto unlock;
5245         } else {
5246                 /* When configuring a dual-mode controller to operate
5247                  * with LE only and using a static address, then switching
5248                  * BR/EDR back on is not allowed.
5249                  *
5250                  * Dual-mode controllers shall operate with the public
5251                  * address as its identity address for BR/EDR and LE. So
5252                  * reject the attempt to create an invalid configuration.
5253                  *
5254                  * The same restrictions applies when secure connections
5255                  * has been enabled. For BR/EDR this is a controller feature
5256                  * while for LE it is a host stack feature. This means that
5257                  * switching BR/EDR back on when secure connections has been
5258                  * enabled is not a supported transaction.
5259                  */
5260                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5261                     (bacmp(&hdev->static_addr, BDADDR_ANY) ||
5262                      hci_dev_test_flag(hdev, HCI_SC_ENABLED))) {
5263                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5264                                               MGMT_STATUS_REJECTED);
5265                         goto unlock;
5266                 }
5267         }
5268
5269         if (pending_find(MGMT_OP_SET_BREDR, hdev)) {
5270                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5271                                       MGMT_STATUS_BUSY);
5272                 goto unlock;
5273         }
5274
5275         cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len);
5276         if (!cmd) {
5277                 err = -ENOMEM;
5278                 goto unlock;
5279         }
5280
5281         /* We need to flip the bit already here so that update_adv_data
5282          * generates the correct flags.
5283          */
5284         hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
5285
5286         hci_req_init(&req, hdev);
5287
5288         write_fast_connectable(&req, false);
5289         __hci_update_page_scan(&req);
5290
5291         /* Since only the advertising data flags will change, there
5292          * is no need to update the scan response data.
5293          */
5294         update_adv_data(&req);
5295
5296         err = hci_req_run(&req, set_bredr_complete);
5297         if (err < 0)
5298                 mgmt_pending_remove(cmd);
5299
5300 unlock:
5301         hci_dev_unlock(hdev);
5302         return err;
5303 }
5304
5305 static void sc_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5306 {
5307         struct mgmt_pending_cmd *cmd;
5308         struct mgmt_mode *cp;
5309
5310         BT_DBG("%s status %u", hdev->name, status);
5311
5312         hci_dev_lock(hdev);
5313
5314         cmd = pending_find(MGMT_OP_SET_SECURE_CONN, hdev);
5315         if (!cmd)
5316                 goto unlock;
5317
5318         if (status) {
5319                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
5320                                 mgmt_status(status));
5321                 goto remove;
5322         }
5323
5324         cp = cmd->param;
5325
5326         switch (cp->val) {
5327         case 0x00:
5328                 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
5329                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5330                 break;
5331         case 0x01:
5332                 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5333                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5334                 break;
5335         case 0x02:
5336                 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5337                 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5338                 break;
5339         }
5340
5341         send_settings_rsp(cmd->sk, MGMT_OP_SET_SECURE_CONN, hdev);
5342         new_settings(hdev, cmd->sk);
5343
5344 remove:
5345         mgmt_pending_remove(cmd);
5346 unlock:
5347         hci_dev_unlock(hdev);
5348 }
5349
5350 static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
5351                            void *data, u16 len)
5352 {
5353         struct mgmt_mode *cp = data;
5354         struct mgmt_pending_cmd *cmd;
5355         struct hci_request req;
5356         u8 val;
5357         int err;
5358
5359         BT_DBG("request for %s", hdev->name);
5360
5361         if (!lmp_sc_capable(hdev) &&
5362             !hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5363                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5364                                        MGMT_STATUS_NOT_SUPPORTED);
5365
5366         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5367             lmp_sc_capable(hdev) &&
5368             !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
5369                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5370                                        MGMT_STATUS_REJECTED);
5371
5372         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5373                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5374                                   MGMT_STATUS_INVALID_PARAMS);
5375
5376         hci_dev_lock(hdev);
5377
5378         if (!hdev_is_powered(hdev) || !lmp_sc_capable(hdev) ||
5379             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5380                 bool changed;
5381
5382                 if (cp->val) {
5383                         changed = !hci_dev_test_and_set_flag(hdev,
5384                                                              HCI_SC_ENABLED);
5385                         if (cp->val == 0x02)
5386                                 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5387                         else
5388                                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5389                 } else {
5390                         changed = hci_dev_test_and_clear_flag(hdev,
5391                                                               HCI_SC_ENABLED);
5392                         hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5393                 }
5394
5395                 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5396                 if (err < 0)
5397                         goto failed;
5398
5399                 if (changed)
5400                         err = new_settings(hdev, sk);
5401
5402                 goto failed;
5403         }
5404
5405         if (pending_find(MGMT_OP_SET_SECURE_CONN, hdev)) {
5406                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5407                                       MGMT_STATUS_BUSY);
5408                 goto failed;
5409         }
5410
5411         val = !!cp->val;
5412
5413         if (val == hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
5414             (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5415                 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5416                 goto failed;
5417         }
5418
5419         cmd = mgmt_pending_add(sk, MGMT_OP_SET_SECURE_CONN, hdev, data, len);
5420         if (!cmd) {
5421                 err = -ENOMEM;
5422                 goto failed;
5423         }
5424
5425         hci_req_init(&req, hdev);
5426         hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
5427         err = hci_req_run(&req, sc_enable_complete);
5428         if (err < 0) {
5429                 mgmt_pending_remove(cmd);
5430                 goto failed;
5431         }
5432
5433 failed:
5434         hci_dev_unlock(hdev);
5435         return err;
5436 }
5437
5438 static int set_debug_keys(struct sock *sk, struct hci_dev *hdev,
5439                           void *data, u16 len)
5440 {
5441         struct mgmt_mode *cp = data;
5442         bool changed, use_changed;
5443         int err;
5444
5445         BT_DBG("request for %s", hdev->name);
5446
5447         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5448                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEBUG_KEYS,
5449                                        MGMT_STATUS_INVALID_PARAMS);
5450
5451         hci_dev_lock(hdev);
5452
5453         if (cp->val)
5454                 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
5455         else
5456                 changed = hci_dev_test_and_clear_flag(hdev,
5457                                                       HCI_KEEP_DEBUG_KEYS);
5458
5459         if (cp->val == 0x02)
5460                 use_changed = !hci_dev_test_and_set_flag(hdev,
5461                                                          HCI_USE_DEBUG_KEYS);
5462         else
5463                 use_changed = hci_dev_test_and_clear_flag(hdev,
5464                                                           HCI_USE_DEBUG_KEYS);
5465
5466         if (hdev_is_powered(hdev) && use_changed &&
5467             hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
5468                 u8 mode = (cp->val == 0x02) ? 0x01 : 0x00;
5469                 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
5470                              sizeof(mode), &mode);
5471         }
5472
5473         err = send_settings_rsp(sk, MGMT_OP_SET_DEBUG_KEYS, hdev);
5474         if (err < 0)
5475                 goto unlock;
5476
5477         if (changed)
5478                 err = new_settings(hdev, sk);
5479
5480 unlock:
5481         hci_dev_unlock(hdev);
5482         return err;
5483 }
5484
5485 static int set_privacy(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5486                        u16 len)
5487 {
5488         struct mgmt_cp_set_privacy *cp = cp_data;
5489         bool changed;
5490         int err;
5491
5492         BT_DBG("request for %s", hdev->name);
5493
5494         if (!lmp_le_capable(hdev))
5495                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5496                                        MGMT_STATUS_NOT_SUPPORTED);
5497
5498         if (cp->privacy != 0x00 && cp->privacy != 0x01)
5499                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5500                                        MGMT_STATUS_INVALID_PARAMS);
5501
5502         if (hdev_is_powered(hdev))
5503                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5504                                        MGMT_STATUS_REJECTED);
5505
5506         hci_dev_lock(hdev);
5507
5508         /* If user space supports this command it is also expected to
5509          * handle IRKs. Therefore, set the HCI_RPA_RESOLVING flag.
5510          */
5511         hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5512
5513         if (cp->privacy) {
5514                 changed = !hci_dev_test_and_set_flag(hdev, HCI_PRIVACY);
5515                 memcpy(hdev->irk, cp->irk, sizeof(hdev->irk));
5516                 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
5517         } else {
5518                 changed = hci_dev_test_and_clear_flag(hdev, HCI_PRIVACY);
5519                 memset(hdev->irk, 0, sizeof(hdev->irk));
5520                 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
5521         }
5522
5523         err = send_settings_rsp(sk, MGMT_OP_SET_PRIVACY, hdev);
5524         if (err < 0)
5525                 goto unlock;
5526
5527         if (changed)
5528                 err = new_settings(hdev, sk);
5529
5530 unlock:
5531         hci_dev_unlock(hdev);
5532         return err;
5533 }
5534
5535 static bool irk_is_valid(struct mgmt_irk_info *irk)
5536 {
5537         switch (irk->addr.type) {
5538         case BDADDR_LE_PUBLIC:
5539                 return true;
5540
5541         case BDADDR_LE_RANDOM:
5542                 /* Two most significant bits shall be set */
5543                 if ((irk->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5544                         return false;
5545                 return true;
5546         }
5547
5548         return false;
5549 }
5550
5551 static int load_irks(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5552                      u16 len)
5553 {
5554         struct mgmt_cp_load_irks *cp = cp_data;
5555         const u16 max_irk_count = ((U16_MAX - sizeof(*cp)) /
5556                                    sizeof(struct mgmt_irk_info));
5557         u16 irk_count, expected_len;
5558         int i, err;
5559
5560         BT_DBG("request for %s", hdev->name);
5561
5562         if (!lmp_le_capable(hdev))
5563                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5564                                        MGMT_STATUS_NOT_SUPPORTED);
5565
5566         irk_count = __le16_to_cpu(cp->irk_count);
5567         if (irk_count > max_irk_count) {
5568                 BT_ERR("load_irks: too big irk_count value %u", irk_count);
5569                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5570                                        MGMT_STATUS_INVALID_PARAMS);
5571         }
5572
5573         expected_len = sizeof(*cp) + irk_count * sizeof(struct mgmt_irk_info);
5574         if (expected_len != len) {
5575                 BT_ERR("load_irks: expected %u bytes, got %u bytes",
5576                        expected_len, len);
5577                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5578                                        MGMT_STATUS_INVALID_PARAMS);
5579         }
5580
5581         BT_DBG("%s irk_count %u", hdev->name, irk_count);
5582
5583         for (i = 0; i < irk_count; i++) {
5584                 struct mgmt_irk_info *key = &cp->irks[i];
5585
5586                 if (!irk_is_valid(key))
5587                         return mgmt_cmd_status(sk, hdev->id,
5588                                                MGMT_OP_LOAD_IRKS,
5589                                                MGMT_STATUS_INVALID_PARAMS);
5590         }
5591
5592         hci_dev_lock(hdev);
5593
5594         hci_smp_irks_clear(hdev);
5595
5596         for (i = 0; i < irk_count; i++) {
5597                 struct mgmt_irk_info *irk = &cp->irks[i];
5598                 u8 addr_type;
5599
5600                 if (irk->addr.type == BDADDR_LE_PUBLIC)
5601                         addr_type = ADDR_LE_DEV_PUBLIC;
5602                 else
5603                         addr_type = ADDR_LE_DEV_RANDOM;
5604
5605                 hci_add_irk(hdev, &irk->addr.bdaddr, addr_type, irk->val,
5606                             BDADDR_ANY);
5607         }
5608
5609         hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5610
5611         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_IRKS, 0, NULL, 0);
5612
5613         hci_dev_unlock(hdev);
5614
5615         return err;
5616 }
5617
5618 static bool ltk_is_valid(struct mgmt_ltk_info *key)
5619 {
5620         if (key->master != 0x00 && key->master != 0x01)
5621                 return false;
5622
5623         switch (key->addr.type) {
5624         case BDADDR_LE_PUBLIC:
5625                 return true;
5626
5627         case BDADDR_LE_RANDOM:
5628                 /* Two most significant bits shall be set */
5629                 if ((key->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5630                         return false;
5631                 return true;
5632         }
5633
5634         return false;
5635 }
5636
5637 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
5638                                void *cp_data, u16 len)
5639 {
5640         struct mgmt_cp_load_long_term_keys *cp = cp_data;
5641         const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
5642                                    sizeof(struct mgmt_ltk_info));
5643         u16 key_count, expected_len;
5644         int i, err;
5645
5646         BT_DBG("request for %s", hdev->name);
5647
5648         if (!lmp_le_capable(hdev))
5649                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5650                                        MGMT_STATUS_NOT_SUPPORTED);
5651
5652         key_count = __le16_to_cpu(cp->key_count);
5653         if (key_count > max_key_count) {
5654                 BT_ERR("load_ltks: too big key_count value %u", key_count);
5655                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5656                                        MGMT_STATUS_INVALID_PARAMS);
5657         }
5658
5659         expected_len = sizeof(*cp) + key_count *
5660                                         sizeof(struct mgmt_ltk_info);
5661         if (expected_len != len) {
5662                 BT_ERR("load_keys: expected %u bytes, got %u bytes",
5663                        expected_len, len);
5664                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5665                                        MGMT_STATUS_INVALID_PARAMS);
5666         }
5667
5668         BT_DBG("%s key_count %u", hdev->name, key_count);
5669
5670         for (i = 0; i < key_count; i++) {
5671                 struct mgmt_ltk_info *key = &cp->keys[i];
5672
5673                 if (!ltk_is_valid(key))
5674                         return mgmt_cmd_status(sk, hdev->id,
5675                                                MGMT_OP_LOAD_LONG_TERM_KEYS,
5676                                                MGMT_STATUS_INVALID_PARAMS);
5677         }
5678
5679         hci_dev_lock(hdev);
5680
5681         hci_smp_ltks_clear(hdev);
5682
5683         for (i = 0; i < key_count; i++) {
5684                 struct mgmt_ltk_info *key = &cp->keys[i];
5685                 u8 type, addr_type, authenticated;
5686
5687                 if (key->addr.type == BDADDR_LE_PUBLIC)
5688                         addr_type = ADDR_LE_DEV_PUBLIC;
5689                 else
5690                         addr_type = ADDR_LE_DEV_RANDOM;
5691
5692                 switch (key->type) {
5693                 case MGMT_LTK_UNAUTHENTICATED:
5694                         authenticated = 0x00;
5695                         type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5696                         break;
5697                 case MGMT_LTK_AUTHENTICATED:
5698                         authenticated = 0x01;
5699                         type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5700                         break;
5701                 case MGMT_LTK_P256_UNAUTH:
5702                         authenticated = 0x00;
5703                         type = SMP_LTK_P256;
5704                         break;
5705                 case MGMT_LTK_P256_AUTH:
5706                         authenticated = 0x01;
5707                         type = SMP_LTK_P256;
5708                         break;
5709                 case MGMT_LTK_P256_DEBUG:
5710                         authenticated = 0x00;
5711                         type = SMP_LTK_P256_DEBUG;
5712                 default:
5713                         continue;
5714                 }
5715
5716                 hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
5717                             authenticated, key->val, key->enc_size, key->ediv,
5718                             key->rand);
5719         }
5720
5721         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 0,
5722                            NULL, 0);
5723
5724         hci_dev_unlock(hdev);
5725
5726         return err;
5727 }
5728
5729 static int conn_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5730 {
5731         struct hci_conn *conn = cmd->user_data;
5732         struct mgmt_rp_get_conn_info rp;
5733         int err;
5734
5735         memcpy(&rp.addr, cmd->param, sizeof(rp.addr));
5736
5737         if (status == MGMT_STATUS_SUCCESS) {
5738                 rp.rssi = conn->rssi;
5739                 rp.tx_power = conn->tx_power;
5740                 rp.max_tx_power = conn->max_tx_power;
5741         } else {
5742                 rp.rssi = HCI_RSSI_INVALID;
5743                 rp.tx_power = HCI_TX_POWER_INVALID;
5744                 rp.max_tx_power = HCI_TX_POWER_INVALID;
5745         }
5746
5747         err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO,
5748                                 status, &rp, sizeof(rp));
5749
5750         hci_conn_drop(conn);
5751         hci_conn_put(conn);
5752
5753         return err;
5754 }
5755
5756 static void conn_info_refresh_complete(struct hci_dev *hdev, u8 hci_status,
5757                                        u16 opcode)
5758 {
5759         struct hci_cp_read_rssi *cp;
5760         struct mgmt_pending_cmd *cmd;
5761         struct hci_conn *conn;
5762         u16 handle;
5763         u8 status;
5764
5765         BT_DBG("status 0x%02x", hci_status);
5766
5767         hci_dev_lock(hdev);
5768
5769         /* Commands sent in request are either Read RSSI or Read Transmit Power
5770          * Level so we check which one was last sent to retrieve connection
5771          * handle.  Both commands have handle as first parameter so it's safe to
5772          * cast data on the same command struct.
5773          *
5774          * First command sent is always Read RSSI and we fail only if it fails.
5775          * In other case we simply override error to indicate success as we
5776          * already remembered if TX power value is actually valid.
5777          */
5778         cp = hci_sent_cmd_data(hdev, HCI_OP_READ_RSSI);
5779         if (!cp) {
5780                 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
5781                 status = MGMT_STATUS_SUCCESS;
5782         } else {
5783                 status = mgmt_status(hci_status);
5784         }
5785
5786         if (!cp) {
5787                 BT_ERR("invalid sent_cmd in conn_info response");
5788                 goto unlock;
5789         }
5790
5791         handle = __le16_to_cpu(cp->handle);
5792         conn = hci_conn_hash_lookup_handle(hdev, handle);
5793         if (!conn) {
5794                 BT_ERR("unknown handle (%d) in conn_info response", handle);
5795                 goto unlock;
5796         }
5797
5798         cmd = pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn);
5799         if (!cmd)
5800                 goto unlock;
5801
5802         cmd->cmd_complete(cmd, status);
5803         mgmt_pending_remove(cmd);
5804
5805 unlock:
5806         hci_dev_unlock(hdev);
5807 }
5808
5809 static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
5810                          u16 len)
5811 {
5812         struct mgmt_cp_get_conn_info *cp = data;
5813         struct mgmt_rp_get_conn_info rp;
5814         struct hci_conn *conn;
5815         unsigned long conn_info_age;
5816         int err = 0;
5817
5818         BT_DBG("%s", hdev->name);
5819
5820         memset(&rp, 0, sizeof(rp));
5821         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
5822         rp.addr.type = cp->addr.type;
5823
5824         if (!bdaddr_type_is_valid(cp->addr.type))
5825                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5826                                          MGMT_STATUS_INVALID_PARAMS,
5827                                          &rp, sizeof(rp));
5828
5829         hci_dev_lock(hdev);
5830
5831         if (!hdev_is_powered(hdev)) {
5832                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5833                                         MGMT_STATUS_NOT_POWERED, &rp,
5834                                         sizeof(rp));
5835                 goto unlock;
5836         }
5837
5838         if (cp->addr.type == BDADDR_BREDR)
5839                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
5840                                                &cp->addr.bdaddr);
5841         else
5842                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
5843
5844         if (!conn || conn->state != BT_CONNECTED) {
5845                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5846                                         MGMT_STATUS_NOT_CONNECTED, &rp,
5847                                         sizeof(rp));
5848                 goto unlock;
5849         }
5850
5851         if (pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn)) {
5852                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5853                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
5854                 goto unlock;
5855         }
5856
5857         /* To avoid client trying to guess when to poll again for information we
5858          * calculate conn info age as random value between min/max set in hdev.
5859          */
5860         conn_info_age = hdev->conn_info_min_age +
5861                         prandom_u32_max(hdev->conn_info_max_age -
5862                                         hdev->conn_info_min_age);
5863
5864         /* Query controller to refresh cached values if they are too old or were
5865          * never read.
5866          */
5867         if (time_after(jiffies, conn->conn_info_timestamp +
5868                        msecs_to_jiffies(conn_info_age)) ||
5869             !conn->conn_info_timestamp) {
5870                 struct hci_request req;
5871                 struct hci_cp_read_tx_power req_txp_cp;
5872                 struct hci_cp_read_rssi req_rssi_cp;
5873                 struct mgmt_pending_cmd *cmd;
5874
5875                 hci_req_init(&req, hdev);
5876                 req_rssi_cp.handle = cpu_to_le16(conn->handle);
5877                 hci_req_add(&req, HCI_OP_READ_RSSI, sizeof(req_rssi_cp),
5878                             &req_rssi_cp);
5879
5880                 /* For LE links TX power does not change thus we don't need to
5881                  * query for it once value is known.
5882                  */
5883                 if (!bdaddr_type_is_le(cp->addr.type) ||
5884                     conn->tx_power == HCI_TX_POWER_INVALID) {
5885                         req_txp_cp.handle = cpu_to_le16(conn->handle);
5886                         req_txp_cp.type = 0x00;
5887                         hci_req_add(&req, HCI_OP_READ_TX_POWER,
5888                                     sizeof(req_txp_cp), &req_txp_cp);
5889                 }
5890
5891                 /* Max TX power needs to be read only once per connection */
5892                 if (conn->max_tx_power == HCI_TX_POWER_INVALID) {
5893                         req_txp_cp.handle = cpu_to_le16(conn->handle);
5894                         req_txp_cp.type = 0x01;
5895                         hci_req_add(&req, HCI_OP_READ_TX_POWER,
5896                                     sizeof(req_txp_cp), &req_txp_cp);
5897                 }
5898
5899                 err = hci_req_run(&req, conn_info_refresh_complete);
5900                 if (err < 0)
5901                         goto unlock;
5902
5903                 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CONN_INFO, hdev,
5904                                        data, len);
5905                 if (!cmd) {
5906                         err = -ENOMEM;
5907                         goto unlock;
5908                 }
5909
5910                 hci_conn_hold(conn);
5911                 cmd->user_data = hci_conn_get(conn);
5912                 cmd->cmd_complete = conn_info_cmd_complete;
5913
5914                 conn->conn_info_timestamp = jiffies;
5915         } else {
5916                 /* Cache is valid, just reply with values cached in hci_conn */
5917                 rp.rssi = conn->rssi;
5918                 rp.tx_power = conn->tx_power;
5919                 rp.max_tx_power = conn->max_tx_power;
5920
5921                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5922                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
5923         }
5924
5925 unlock:
5926         hci_dev_unlock(hdev);
5927         return err;
5928 }
5929
5930 static int clock_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5931 {
5932         struct hci_conn *conn = cmd->user_data;
5933         struct mgmt_rp_get_clock_info rp;
5934         struct hci_dev *hdev;
5935         int err;
5936
5937         memset(&rp, 0, sizeof(rp));
5938         memcpy(&rp.addr, &cmd->param, sizeof(rp.addr));
5939
5940         if (status)
5941                 goto complete;
5942
5943         hdev = hci_dev_get(cmd->index);
5944         if (hdev) {
5945                 rp.local_clock = cpu_to_le32(hdev->clock);
5946                 hci_dev_put(hdev);
5947         }
5948
5949         if (conn) {
5950                 rp.piconet_clock = cpu_to_le32(conn->clock);
5951                 rp.accuracy = cpu_to_le16(conn->clock_accuracy);
5952         }
5953
5954 complete:
5955         err = mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status, &rp,
5956                                 sizeof(rp));
5957
5958         if (conn) {
5959                 hci_conn_drop(conn);
5960                 hci_conn_put(conn);
5961         }
5962
5963         return err;
5964 }
5965
5966 static void get_clock_info_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5967 {
5968         struct hci_cp_read_clock *hci_cp;
5969         struct mgmt_pending_cmd *cmd;
5970         struct hci_conn *conn;
5971
5972         BT_DBG("%s status %u", hdev->name, status);
5973
5974         hci_dev_lock(hdev);
5975
5976         hci_cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
5977         if (!hci_cp)
5978                 goto unlock;
5979
5980         if (hci_cp->which) {
5981                 u16 handle = __le16_to_cpu(hci_cp->handle);
5982                 conn = hci_conn_hash_lookup_handle(hdev, handle);
5983         } else {
5984                 conn = NULL;
5985         }
5986
5987         cmd = pending_find_data(MGMT_OP_GET_CLOCK_INFO, hdev, conn);
5988         if (!cmd)
5989                 goto unlock;
5990
5991         cmd->cmd_complete(cmd, mgmt_status(status));
5992         mgmt_pending_remove(cmd);
5993
5994 unlock:
5995         hci_dev_unlock(hdev);
5996 }
5997
5998 static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
5999                          u16 len)
6000 {
6001         struct mgmt_cp_get_clock_info *cp = data;
6002         struct mgmt_rp_get_clock_info rp;
6003         struct hci_cp_read_clock hci_cp;
6004         struct mgmt_pending_cmd *cmd;
6005         struct hci_request req;
6006         struct hci_conn *conn;
6007         int err;
6008
6009         BT_DBG("%s", hdev->name);
6010
6011         memset(&rp, 0, sizeof(rp));
6012         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
6013         rp.addr.type = cp->addr.type;
6014
6015         if (cp->addr.type != BDADDR_BREDR)
6016                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6017                                          MGMT_STATUS_INVALID_PARAMS,
6018                                          &rp, sizeof(rp));
6019
6020         hci_dev_lock(hdev);
6021
6022         if (!hdev_is_powered(hdev)) {
6023                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6024                                         MGMT_STATUS_NOT_POWERED, &rp,
6025                                         sizeof(rp));
6026                 goto unlock;
6027         }
6028
6029         if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6030                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
6031                                                &cp->addr.bdaddr);
6032                 if (!conn || conn->state != BT_CONNECTED) {
6033                         err = mgmt_cmd_complete(sk, hdev->id,
6034                                                 MGMT_OP_GET_CLOCK_INFO,
6035                                                 MGMT_STATUS_NOT_CONNECTED,
6036                                                 &rp, sizeof(rp));
6037                         goto unlock;
6038                 }
6039         } else {
6040                 conn = NULL;
6041         }
6042
6043         cmd = mgmt_pending_add(sk, MGMT_OP_GET_CLOCK_INFO, hdev, data, len);
6044         if (!cmd) {
6045                 err = -ENOMEM;
6046                 goto unlock;
6047         }
6048
6049         cmd->cmd_complete = clock_info_cmd_complete;
6050
6051         hci_req_init(&req, hdev);
6052
6053         memset(&hci_cp, 0, sizeof(hci_cp));
6054         hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6055
6056         if (conn) {
6057                 hci_conn_hold(conn);
6058                 cmd->user_data = hci_conn_get(conn);
6059
6060                 hci_cp.handle = cpu_to_le16(conn->handle);
6061                 hci_cp.which = 0x01; /* Piconet clock */
6062                 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6063         }
6064
6065         err = hci_req_run(&req, get_clock_info_complete);
6066         if (err < 0)
6067                 mgmt_pending_remove(cmd);
6068
6069 unlock:
6070         hci_dev_unlock(hdev);
6071         return err;
6072 }
6073
6074 static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
6075 {
6076         struct hci_conn *conn;
6077
6078         conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
6079         if (!conn)
6080                 return false;
6081
6082         if (conn->dst_type != type)
6083                 return false;
6084
6085         if (conn->state != BT_CONNECTED)
6086                 return false;
6087
6088         return true;
6089 }
6090
6091 /* This function requires the caller holds hdev->lock */
6092 static int hci_conn_params_set(struct hci_request *req, bdaddr_t *addr,
6093                                u8 addr_type, u8 auto_connect)
6094 {
6095         struct hci_dev *hdev = req->hdev;
6096         struct hci_conn_params *params;
6097
6098         params = hci_conn_params_add(hdev, addr, addr_type);
6099         if (!params)
6100                 return -EIO;
6101
6102         if (params->auto_connect == auto_connect)
6103                 return 0;
6104
6105         list_del_init(&params->action);
6106
6107         switch (auto_connect) {
6108         case HCI_AUTO_CONN_DISABLED:
6109         case HCI_AUTO_CONN_LINK_LOSS:
6110                 __hci_update_background_scan(req);
6111                 break;
6112         case HCI_AUTO_CONN_REPORT:
6113                 list_add(&params->action, &hdev->pend_le_reports);
6114                 __hci_update_background_scan(req);
6115                 break;
6116         case HCI_AUTO_CONN_DIRECT:
6117         case HCI_AUTO_CONN_ALWAYS:
6118                 if (!is_connected(hdev, addr, addr_type)) {
6119                         list_add(&params->action, &hdev->pend_le_conns);
6120                         __hci_update_background_scan(req);
6121                 }
6122                 break;
6123         }
6124
6125         params->auto_connect = auto_connect;
6126
6127         BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
6128                auto_connect);
6129
6130         return 0;
6131 }
6132
6133 static void device_added(struct sock *sk, struct hci_dev *hdev,
6134                          bdaddr_t *bdaddr, u8 type, u8 action)
6135 {
6136         struct mgmt_ev_device_added ev;
6137
6138         bacpy(&ev.addr.bdaddr, bdaddr);
6139         ev.addr.type = type;
6140         ev.action = action;
6141
6142         mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
6143 }
6144
6145 static void add_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6146 {
6147         struct mgmt_pending_cmd *cmd;
6148
6149         BT_DBG("status 0x%02x", status);
6150
6151         hci_dev_lock(hdev);
6152
6153         cmd = pending_find(MGMT_OP_ADD_DEVICE, hdev);
6154         if (!cmd)
6155                 goto unlock;
6156
6157         cmd->cmd_complete(cmd, mgmt_status(status));
6158         mgmt_pending_remove(cmd);
6159
6160 unlock:
6161         hci_dev_unlock(hdev);
6162 }
6163
6164 static int add_device(struct sock *sk, struct hci_dev *hdev,
6165                       void *data, u16 len)
6166 {
6167         struct mgmt_cp_add_device *cp = data;
6168         struct mgmt_pending_cmd *cmd;
6169         struct hci_request req;
6170         u8 auto_conn, addr_type;
6171         int err;
6172
6173         BT_DBG("%s", hdev->name);
6174
6175         if (!bdaddr_type_is_valid(cp->addr.type) ||
6176             !bacmp(&cp->addr.bdaddr, BDADDR_ANY))
6177                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6178                                          MGMT_STATUS_INVALID_PARAMS,
6179                                          &cp->addr, sizeof(cp->addr));
6180
6181         if (cp->action != 0x00 && cp->action != 0x01 && cp->action != 0x02)
6182                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6183                                          MGMT_STATUS_INVALID_PARAMS,
6184                                          &cp->addr, sizeof(cp->addr));
6185
6186         hci_req_init(&req, hdev);
6187
6188         hci_dev_lock(hdev);
6189
6190         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_DEVICE, hdev, data, len);
6191         if (!cmd) {
6192                 err = -ENOMEM;
6193                 goto unlock;
6194         }
6195
6196         cmd->cmd_complete = addr_cmd_complete;
6197
6198         if (cp->addr.type == BDADDR_BREDR) {
6199                 /* Only incoming connections action is supported for now */
6200                 if (cp->action != 0x01) {
6201                         err = cmd->cmd_complete(cmd,
6202                                                 MGMT_STATUS_INVALID_PARAMS);
6203                         mgmt_pending_remove(cmd);
6204                         goto unlock;
6205                 }
6206
6207                 err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
6208                                           cp->addr.type);
6209                 if (err)
6210                         goto unlock;
6211
6212                 __hci_update_page_scan(&req);
6213
6214                 goto added;
6215         }
6216
6217         if (cp->addr.type == BDADDR_LE_PUBLIC)
6218                 addr_type = ADDR_LE_DEV_PUBLIC;
6219         else
6220                 addr_type = ADDR_LE_DEV_RANDOM;
6221
6222         if (cp->action == 0x02)
6223                 auto_conn = HCI_AUTO_CONN_ALWAYS;
6224         else if (cp->action == 0x01)
6225                 auto_conn = HCI_AUTO_CONN_DIRECT;
6226         else
6227                 auto_conn = HCI_AUTO_CONN_REPORT;
6228
6229         /* Kernel internally uses conn_params with resolvable private
6230          * address, but Add Device allows only identity addresses.
6231          * Make sure it is enforced before calling
6232          * hci_conn_params_lookup.
6233          */
6234         if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
6235                 err = cmd->cmd_complete(cmd, MGMT_STATUS_INVALID_PARAMS);
6236                 mgmt_pending_remove(cmd);
6237                 goto unlock;
6238         }
6239
6240         /* If the connection parameters don't exist for this device,
6241          * they will be created and configured with defaults.
6242          */
6243         if (hci_conn_params_set(&req, &cp->addr.bdaddr, addr_type,
6244                                 auto_conn) < 0) {
6245                 err = cmd->cmd_complete(cmd, MGMT_STATUS_FAILED);
6246                 mgmt_pending_remove(cmd);
6247                 goto unlock;
6248         }
6249
6250 added:
6251         device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
6252
6253         err = hci_req_run(&req, add_device_complete);
6254         if (err < 0) {
6255                 /* ENODATA means no HCI commands were needed (e.g. if
6256                  * the adapter is powered off).
6257                  */
6258                 if (err == -ENODATA)
6259                         err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6260                 mgmt_pending_remove(cmd);
6261         }
6262
6263 unlock:
6264         hci_dev_unlock(hdev);
6265         return err;
6266 }
6267
6268 static void device_removed(struct sock *sk, struct hci_dev *hdev,
6269                            bdaddr_t *bdaddr, u8 type)
6270 {
6271         struct mgmt_ev_device_removed ev;
6272
6273         bacpy(&ev.addr.bdaddr, bdaddr);
6274         ev.addr.type = type;
6275
6276         mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
6277 }
6278
6279 static void remove_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6280 {
6281         struct mgmt_pending_cmd *cmd;
6282
6283         BT_DBG("status 0x%02x", status);
6284
6285         hci_dev_lock(hdev);
6286
6287         cmd = pending_find(MGMT_OP_REMOVE_DEVICE, hdev);
6288         if (!cmd)
6289                 goto unlock;
6290
6291         cmd->cmd_complete(cmd, mgmt_status(status));
6292         mgmt_pending_remove(cmd);
6293
6294 unlock:
6295         hci_dev_unlock(hdev);
6296 }
6297
6298 static int remove_device(struct sock *sk, struct hci_dev *hdev,
6299                          void *data, u16 len)
6300 {
6301         struct mgmt_cp_remove_device *cp = data;
6302         struct mgmt_pending_cmd *cmd;
6303         struct hci_request req;
6304         int err;
6305
6306         BT_DBG("%s", hdev->name);
6307
6308         hci_req_init(&req, hdev);
6309
6310         hci_dev_lock(hdev);
6311
6312         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_DEVICE, hdev, data, len);
6313         if (!cmd) {
6314                 err = -ENOMEM;
6315                 goto unlock;
6316         }
6317
6318         cmd->cmd_complete = addr_cmd_complete;
6319
6320         if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6321                 struct hci_conn_params *params;
6322                 u8 addr_type;
6323
6324                 if (!bdaddr_type_is_valid(cp->addr.type)) {
6325                         err = cmd->cmd_complete(cmd,
6326                                                 MGMT_STATUS_INVALID_PARAMS);
6327                         mgmt_pending_remove(cmd);
6328                         goto unlock;
6329                 }
6330
6331                 if (cp->addr.type == BDADDR_BREDR) {
6332                         err = hci_bdaddr_list_del(&hdev->whitelist,
6333                                                   &cp->addr.bdaddr,
6334                                                   cp->addr.type);
6335                         if (err) {
6336                                 err = cmd->cmd_complete(cmd,
6337                                                         MGMT_STATUS_INVALID_PARAMS);
6338                                 mgmt_pending_remove(cmd);
6339                                 goto unlock;
6340                         }
6341
6342                         __hci_update_page_scan(&req);
6343
6344                         device_removed(sk, hdev, &cp->addr.bdaddr,
6345                                        cp->addr.type);
6346                         goto complete;
6347                 }
6348
6349                 if (cp->addr.type == BDADDR_LE_PUBLIC)
6350                         addr_type = ADDR_LE_DEV_PUBLIC;
6351                 else
6352                         addr_type = ADDR_LE_DEV_RANDOM;
6353
6354                 /* Kernel internally uses conn_params with resolvable private
6355                  * address, but Remove Device allows only identity addresses.
6356                  * Make sure it is enforced before calling
6357                  * hci_conn_params_lookup.
6358                  */
6359                 if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
6360                         err = cmd->cmd_complete(cmd,
6361                                                 MGMT_STATUS_INVALID_PARAMS);
6362                         mgmt_pending_remove(cmd);
6363                         goto unlock;
6364                 }
6365
6366                 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
6367                                                 addr_type);
6368                 if (!params) {
6369                         err = cmd->cmd_complete(cmd,
6370                                                 MGMT_STATUS_INVALID_PARAMS);
6371                         mgmt_pending_remove(cmd);
6372                         goto unlock;
6373                 }
6374
6375                 if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
6376                         err = cmd->cmd_complete(cmd,
6377                                                 MGMT_STATUS_INVALID_PARAMS);
6378                         mgmt_pending_remove(cmd);
6379                         goto unlock;
6380                 }
6381
6382                 list_del(&params->action);
6383                 list_del(&params->list);
6384                 kfree(params);
6385                 __hci_update_background_scan(&req);
6386
6387                 device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
6388         } else {
6389                 struct hci_conn_params *p, *tmp;
6390                 struct bdaddr_list *b, *btmp;
6391
6392                 if (cp->addr.type) {
6393                         err = cmd->cmd_complete(cmd,
6394                                                 MGMT_STATUS_INVALID_PARAMS);
6395                         mgmt_pending_remove(cmd);
6396                         goto unlock;
6397                 }
6398
6399                 list_for_each_entry_safe(b, btmp, &hdev->whitelist, list) {
6400                         device_removed(sk, hdev, &b->bdaddr, b->bdaddr_type);
6401                         list_del(&b->list);
6402                         kfree(b);
6403                 }
6404
6405                 __hci_update_page_scan(&req);
6406
6407                 list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
6408                         if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
6409                                 continue;
6410                         device_removed(sk, hdev, &p->addr, p->addr_type);
6411                         list_del(&p->action);
6412                         list_del(&p->list);
6413                         kfree(p);
6414                 }
6415
6416                 BT_DBG("All LE connection parameters were removed");
6417
6418                 __hci_update_background_scan(&req);
6419         }
6420
6421 complete:
6422         err = hci_req_run(&req, remove_device_complete);
6423         if (err < 0) {
6424                 /* ENODATA means no HCI commands were needed (e.g. if
6425                  * the adapter is powered off).
6426                  */
6427                 if (err == -ENODATA)
6428                         err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6429                 mgmt_pending_remove(cmd);
6430         }
6431
6432 unlock:
6433         hci_dev_unlock(hdev);
6434         return err;
6435 }
6436
6437 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
6438                            u16 len)
6439 {
6440         struct mgmt_cp_load_conn_param *cp = data;
6441         const u16 max_param_count = ((U16_MAX - sizeof(*cp)) /
6442                                      sizeof(struct mgmt_conn_param));
6443         u16 param_count, expected_len;
6444         int i;
6445
6446         if (!lmp_le_capable(hdev))
6447                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6448                                        MGMT_STATUS_NOT_SUPPORTED);
6449
6450         param_count = __le16_to_cpu(cp->param_count);
6451         if (param_count > max_param_count) {
6452                 BT_ERR("load_conn_param: too big param_count value %u",
6453                        param_count);
6454                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6455                                        MGMT_STATUS_INVALID_PARAMS);
6456         }
6457
6458         expected_len = sizeof(*cp) + param_count *
6459                                         sizeof(struct mgmt_conn_param);
6460         if (expected_len != len) {
6461                 BT_ERR("load_conn_param: expected %u bytes, got %u bytes",
6462                        expected_len, len);
6463                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6464                                        MGMT_STATUS_INVALID_PARAMS);
6465         }
6466
6467         BT_DBG("%s param_count %u", hdev->name, param_count);
6468
6469         hci_dev_lock(hdev);
6470
6471         hci_conn_params_clear_disabled(hdev);
6472
6473         for (i = 0; i < param_count; i++) {
6474                 struct mgmt_conn_param *param = &cp->params[i];
6475                 struct hci_conn_params *hci_param;
6476                 u16 min, max, latency, timeout;
6477                 u8 addr_type;
6478
6479                 BT_DBG("Adding %pMR (type %u)", &param->addr.bdaddr,
6480                        param->addr.type);
6481
6482                 if (param->addr.type == BDADDR_LE_PUBLIC) {
6483                         addr_type = ADDR_LE_DEV_PUBLIC;
6484                 } else if (param->addr.type == BDADDR_LE_RANDOM) {
6485                         addr_type = ADDR_LE_DEV_RANDOM;
6486                 } else {
6487                         BT_ERR("Ignoring invalid connection parameters");
6488                         continue;
6489                 }
6490
6491                 min = le16_to_cpu(param->min_interval);
6492                 max = le16_to_cpu(param->max_interval);
6493                 latency = le16_to_cpu(param->latency);
6494                 timeout = le16_to_cpu(param->timeout);
6495
6496                 BT_DBG("min 0x%04x max 0x%04x latency 0x%04x timeout 0x%04x",
6497                        min, max, latency, timeout);
6498
6499                 if (hci_check_conn_params(min, max, latency, timeout) < 0) {
6500                         BT_ERR("Ignoring invalid connection parameters");
6501                         continue;
6502                 }
6503
6504                 hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
6505                                                 addr_type);
6506                 if (!hci_param) {
6507                         BT_ERR("Failed to add connection parameters");
6508                         continue;
6509                 }
6510
6511                 hci_param->conn_min_interval = min;
6512                 hci_param->conn_max_interval = max;
6513                 hci_param->conn_latency = latency;
6514                 hci_param->supervision_timeout = timeout;
6515         }
6516
6517         hci_dev_unlock(hdev);
6518
6519         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM, 0,
6520                                  NULL, 0);
6521 }
6522
6523 static int set_external_config(struct sock *sk, struct hci_dev *hdev,
6524                                void *data, u16 len)
6525 {
6526         struct mgmt_cp_set_external_config *cp = data;
6527         bool changed;
6528         int err;
6529
6530         BT_DBG("%s", hdev->name);
6531
6532         if (hdev_is_powered(hdev))
6533                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6534                                        MGMT_STATUS_REJECTED);
6535
6536         if (cp->config != 0x00 && cp->config != 0x01)
6537                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6538                                          MGMT_STATUS_INVALID_PARAMS);
6539
6540         if (!test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
6541                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6542                                        MGMT_STATUS_NOT_SUPPORTED);
6543
6544         hci_dev_lock(hdev);
6545
6546         if (cp->config)
6547                 changed = !hci_dev_test_and_set_flag(hdev, HCI_EXT_CONFIGURED);
6548         else
6549                 changed = hci_dev_test_and_clear_flag(hdev, HCI_EXT_CONFIGURED);
6550
6551         err = send_options_rsp(sk, MGMT_OP_SET_EXTERNAL_CONFIG, hdev);
6552         if (err < 0)
6553                 goto unlock;
6554
6555         if (!changed)
6556                 goto unlock;
6557
6558         err = new_options(hdev, sk);
6559
6560         if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) == is_configured(hdev)) {
6561                 mgmt_index_removed(hdev);
6562
6563                 if (hci_dev_test_and_change_flag(hdev, HCI_UNCONFIGURED)) {
6564                         hci_dev_set_flag(hdev, HCI_CONFIG);
6565                         hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6566
6567                         queue_work(hdev->req_workqueue, &hdev->power_on);
6568                 } else {
6569                         set_bit(HCI_RAW, &hdev->flags);
6570                         mgmt_index_added(hdev);
6571                 }
6572         }
6573
6574 unlock:
6575         hci_dev_unlock(hdev);
6576         return err;
6577 }
6578
6579 static int set_public_address(struct sock *sk, struct hci_dev *hdev,
6580                               void *data, u16 len)
6581 {
6582         struct mgmt_cp_set_public_address *cp = data;
6583         bool changed;
6584         int err;
6585
6586         BT_DBG("%s", hdev->name);
6587
6588         if (hdev_is_powered(hdev))
6589                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6590                                        MGMT_STATUS_REJECTED);
6591
6592         if (!bacmp(&cp->bdaddr, BDADDR_ANY))
6593                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6594                                        MGMT_STATUS_INVALID_PARAMS);
6595
6596         if (!hdev->set_bdaddr)
6597                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6598                                        MGMT_STATUS_NOT_SUPPORTED);
6599
6600         hci_dev_lock(hdev);
6601
6602         changed = !!bacmp(&hdev->public_addr, &cp->bdaddr);
6603         bacpy(&hdev->public_addr, &cp->bdaddr);
6604
6605         err = send_options_rsp(sk, MGMT_OP_SET_PUBLIC_ADDRESS, hdev);
6606         if (err < 0)
6607                 goto unlock;
6608
6609         if (!changed)
6610                 goto unlock;
6611
6612         if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
6613                 err = new_options(hdev, sk);
6614
6615         if (is_configured(hdev)) {
6616                 mgmt_index_removed(hdev);
6617
6618                 hci_dev_clear_flag(hdev, HCI_UNCONFIGURED);
6619
6620                 hci_dev_set_flag(hdev, HCI_CONFIG);
6621                 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6622
6623                 queue_work(hdev->req_workqueue, &hdev->power_on);
6624         }
6625
6626 unlock:
6627         hci_dev_unlock(hdev);
6628         return err;
6629 }
6630
6631 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
6632                                   u8 data_len)
6633 {
6634         eir[eir_len++] = sizeof(type) + data_len;
6635         eir[eir_len++] = type;
6636         memcpy(&eir[eir_len], data, data_len);
6637         eir_len += data_len;
6638
6639         return eir_len;
6640 }
6641
6642 static void read_local_oob_ext_data_complete(struct hci_dev *hdev, u8 status,
6643                                              u16 opcode, struct sk_buff *skb)
6644 {
6645         const struct mgmt_cp_read_local_oob_ext_data *mgmt_cp;
6646         struct mgmt_rp_read_local_oob_ext_data *mgmt_rp;
6647         u8 *h192, *r192, *h256, *r256;
6648         struct mgmt_pending_cmd *cmd;
6649         u16 eir_len;
6650         int err;
6651
6652         BT_DBG("%s status %u", hdev->name, status);
6653
6654         cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev);
6655         if (!cmd)
6656                 return;
6657
6658         mgmt_cp = cmd->param;
6659
6660         if (status) {
6661                 status = mgmt_status(status);
6662                 eir_len = 0;
6663
6664                 h192 = NULL;
6665                 r192 = NULL;
6666                 h256 = NULL;
6667                 r256 = NULL;
6668         } else if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
6669                 struct hci_rp_read_local_oob_data *rp;
6670
6671                 if (skb->len != sizeof(*rp)) {
6672                         status = MGMT_STATUS_FAILED;
6673                         eir_len = 0;
6674                 } else {
6675                         status = MGMT_STATUS_SUCCESS;
6676                         rp = (void *)skb->data;
6677
6678                         eir_len = 5 + 18 + 18;
6679                         h192 = rp->hash;
6680                         r192 = rp->rand;
6681                         h256 = NULL;
6682                         r256 = NULL;
6683                 }
6684         } else {
6685                 struct hci_rp_read_local_oob_ext_data *rp;
6686
6687                 if (skb->len != sizeof(*rp)) {
6688                         status = MGMT_STATUS_FAILED;
6689                         eir_len = 0;
6690                 } else {
6691                         status = MGMT_STATUS_SUCCESS;
6692                         rp = (void *)skb->data;
6693
6694                         if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6695                                 eir_len = 5 + 18 + 18;
6696                                 h192 = NULL;
6697                                 r192 = NULL;
6698                         } else {
6699                                 eir_len = 5 + 18 + 18 + 18 + 18;
6700                                 h192 = rp->hash192;
6701                                 r192 = rp->rand192;
6702                         }
6703
6704                         h256 = rp->hash256;
6705                         r256 = rp->rand256;
6706                 }
6707         }
6708
6709         mgmt_rp = kmalloc(sizeof(*mgmt_rp) + eir_len, GFP_KERNEL);
6710         if (!mgmt_rp)
6711                 goto done;
6712
6713         if (status)
6714                 goto send_rsp;
6715
6716         eir_len = eir_append_data(mgmt_rp->eir, 0, EIR_CLASS_OF_DEV,
6717                                   hdev->dev_class, 3);
6718
6719         if (h192 && r192) {
6720                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6721                                           EIR_SSP_HASH_C192, h192, 16);
6722                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6723                                           EIR_SSP_RAND_R192, r192, 16);
6724         }
6725
6726         if (h256 && r256) {
6727                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6728                                           EIR_SSP_HASH_C256, h256, 16);
6729                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6730                                           EIR_SSP_RAND_R256, r256, 16);
6731         }
6732
6733 send_rsp:
6734         mgmt_rp->type = mgmt_cp->type;
6735         mgmt_rp->eir_len = cpu_to_le16(eir_len);
6736
6737         err = mgmt_cmd_complete(cmd->sk, hdev->id,
6738                                 MGMT_OP_READ_LOCAL_OOB_EXT_DATA, status,
6739                                 mgmt_rp, sizeof(*mgmt_rp) + eir_len);
6740         if (err < 0 || status)
6741                 goto done;
6742
6743         hci_sock_set_flag(cmd->sk, HCI_MGMT_OOB_DATA_EVENTS);
6744
6745         err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6746                                  mgmt_rp, sizeof(*mgmt_rp) + eir_len,
6747                                  HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
6748 done:
6749         kfree(mgmt_rp);
6750         mgmt_pending_remove(cmd);
6751 }
6752
6753 static int read_local_ssp_oob_req(struct hci_dev *hdev, struct sock *sk,
6754                                   struct mgmt_cp_read_local_oob_ext_data *cp)
6755 {
6756         struct mgmt_pending_cmd *cmd;
6757         struct hci_request req;
6758         int err;
6759
6760         cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev,
6761                                cp, sizeof(*cp));
6762         if (!cmd)
6763                 return -ENOMEM;
6764
6765         hci_req_init(&req, hdev);
6766
6767         if (bredr_sc_enabled(hdev))
6768                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
6769         else
6770                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
6771
6772         err = hci_req_run_skb(&req, read_local_oob_ext_data_complete);
6773         if (err < 0) {
6774                 mgmt_pending_remove(cmd);
6775                 return err;
6776         }
6777
6778         return 0;
6779 }
6780
6781 static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
6782                                    void *data, u16 data_len)
6783 {
6784         struct mgmt_cp_read_local_oob_ext_data *cp = data;
6785         struct mgmt_rp_read_local_oob_ext_data *rp;
6786         size_t rp_len;
6787         u16 eir_len;
6788         u8 status, flags, role, addr[7], hash[16], rand[16];
6789         int err;
6790
6791         BT_DBG("%s", hdev->name);
6792
6793         if (hdev_is_powered(hdev)) {
6794                 switch (cp->type) {
6795                 case BIT(BDADDR_BREDR):
6796                         status = mgmt_bredr_support(hdev);
6797                         if (status)
6798                                 eir_len = 0;
6799                         else
6800                                 eir_len = 5;
6801                         break;
6802                 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6803                         status = mgmt_le_support(hdev);
6804                         if (status)
6805                                 eir_len = 0;
6806                         else
6807                                 eir_len = 9 + 3 + 18 + 18 + 3;
6808                         break;
6809                 default:
6810                         status = MGMT_STATUS_INVALID_PARAMS;
6811                         eir_len = 0;
6812                         break;
6813                 }
6814         } else {
6815                 status = MGMT_STATUS_NOT_POWERED;
6816                 eir_len = 0;
6817         }
6818
6819         rp_len = sizeof(*rp) + eir_len;
6820         rp = kmalloc(rp_len, GFP_ATOMIC);
6821         if (!rp)
6822                 return -ENOMEM;
6823
6824         if (status)
6825                 goto complete;
6826
6827         hci_dev_lock(hdev);
6828
6829         eir_len = 0;
6830         switch (cp->type) {
6831         case BIT(BDADDR_BREDR):
6832                 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
6833                         err = read_local_ssp_oob_req(hdev, sk, cp);
6834                         hci_dev_unlock(hdev);
6835                         if (!err)
6836                                 goto done;
6837
6838                         status = MGMT_STATUS_FAILED;
6839                         goto complete;
6840                 } else {
6841                         eir_len = eir_append_data(rp->eir, eir_len,
6842                                                   EIR_CLASS_OF_DEV,
6843                                                   hdev->dev_class, 3);
6844                 }
6845                 break;
6846         case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6847                 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
6848                     smp_generate_oob(hdev, hash, rand) < 0) {
6849                         hci_dev_unlock(hdev);
6850                         status = MGMT_STATUS_FAILED;
6851                         goto complete;
6852                 }
6853
6854                 /* This should return the active RPA, but since the RPA
6855                  * is only programmed on demand, it is really hard to fill
6856                  * this in at the moment. For now disallow retrieving
6857                  * local out-of-band data when privacy is in use.
6858                  *
6859                  * Returning the identity address will not help here since
6860                  * pairing happens before the identity resolving key is
6861                  * known and thus the connection establishment happens
6862                  * based on the RPA and not the identity address.
6863                  */
6864                 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
6865                         hci_dev_unlock(hdev);
6866                         status = MGMT_STATUS_REJECTED;
6867                         goto complete;
6868                 }
6869
6870                 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
6871                    !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
6872                    (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6873                     bacmp(&hdev->static_addr, BDADDR_ANY))) {
6874                         memcpy(addr, &hdev->static_addr, 6);
6875                         addr[6] = 0x01;
6876                 } else {
6877                         memcpy(addr, &hdev->bdaddr, 6);
6878                         addr[6] = 0x00;
6879                 }
6880
6881                 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_BDADDR,
6882                                           addr, sizeof(addr));
6883
6884                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
6885                         role = 0x02;
6886                 else
6887                         role = 0x01;
6888
6889                 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_ROLE,
6890                                           &role, sizeof(role));
6891
6892                 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED)) {
6893                         eir_len = eir_append_data(rp->eir, eir_len,
6894                                                   EIR_LE_SC_CONFIRM,
6895                                                   hash, sizeof(hash));
6896
6897                         eir_len = eir_append_data(rp->eir, eir_len,
6898                                                   EIR_LE_SC_RANDOM,
6899                                                   rand, sizeof(rand));
6900                 }
6901
6902                 flags = get_adv_discov_flags(hdev);
6903
6904                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
6905                         flags |= LE_AD_NO_BREDR;
6906
6907                 eir_len = eir_append_data(rp->eir, eir_len, EIR_FLAGS,
6908                                           &flags, sizeof(flags));
6909                 break;
6910         }
6911
6912         hci_dev_unlock(hdev);
6913
6914         hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
6915
6916         status = MGMT_STATUS_SUCCESS;
6917
6918 complete:
6919         rp->type = cp->type;
6920         rp->eir_len = cpu_to_le16(eir_len);
6921
6922         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
6923                                 status, rp, sizeof(*rp) + eir_len);
6924         if (err < 0 || status)
6925                 goto done;
6926
6927         err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6928                                  rp, sizeof(*rp) + eir_len,
6929                                  HCI_MGMT_OOB_DATA_EVENTS, sk);
6930
6931 done:
6932         kfree(rp);
6933
6934         return err;
6935 }
6936
6937 static u32 get_supported_adv_flags(struct hci_dev *hdev)
6938 {
6939         u32 flags = 0;
6940
6941         flags |= MGMT_ADV_FLAG_CONNECTABLE;
6942         flags |= MGMT_ADV_FLAG_DISCOV;
6943         flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
6944         flags |= MGMT_ADV_FLAG_MANAGED_FLAGS;
6945
6946         if (hdev->adv_tx_power != HCI_TX_POWER_INVALID)
6947                 flags |= MGMT_ADV_FLAG_TX_POWER;
6948
6949         return flags;
6950 }
6951
6952 static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
6953                              void *data, u16 data_len)
6954 {
6955         struct mgmt_rp_read_adv_features *rp;
6956         size_t rp_len;
6957         int err, i;
6958         bool instance;
6959         struct adv_info *adv_instance;
6960         u32 supported_flags;
6961
6962         BT_DBG("%s", hdev->name);
6963
6964         if (!lmp_le_capable(hdev))
6965                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6966                                        MGMT_STATUS_REJECTED);
6967
6968         hci_dev_lock(hdev);
6969
6970         rp_len = sizeof(*rp);
6971
6972         instance = hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE);
6973         if (instance)
6974                 rp_len += hdev->adv_instance_cnt;
6975
6976         rp = kmalloc(rp_len, GFP_ATOMIC);
6977         if (!rp) {
6978                 hci_dev_unlock(hdev);
6979                 return -ENOMEM;
6980         }
6981
6982         supported_flags = get_supported_adv_flags(hdev);
6983
6984         rp->supported_flags = cpu_to_le32(supported_flags);
6985         rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
6986         rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
6987         rp->max_instances = HCI_MAX_ADV_INSTANCES;
6988
6989         if (instance) {
6990                 i = 0;
6991                 list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
6992                         if (i >= hdev->adv_instance_cnt)
6993                                 break;
6994
6995                         rp->instance[i] = adv_instance->instance;
6996                         i++;
6997                 }
6998                 rp->num_instances = hdev->adv_instance_cnt;
6999         } else {
7000                 rp->num_instances = 0;
7001         }
7002
7003         hci_dev_unlock(hdev);
7004
7005         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
7006                                 MGMT_STATUS_SUCCESS, rp, rp_len);
7007
7008         kfree(rp);
7009
7010         return err;
7011 }
7012
7013 static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
7014                               u8 len, bool is_adv_data)
7015 {
7016         u8 max_len = HCI_MAX_AD_LENGTH;
7017         int i, cur_len;
7018         bool flags_managed = false;
7019         bool tx_power_managed = false;
7020         u32 flags_params = MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LIMITED_DISCOV |
7021                            MGMT_ADV_FLAG_MANAGED_FLAGS;
7022
7023         if (is_adv_data && (adv_flags & flags_params)) {
7024                 flags_managed = true;
7025                 max_len -= 3;
7026         }
7027
7028         if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_TX_POWER)) {
7029                 tx_power_managed = true;
7030                 max_len -= 3;
7031         }
7032
7033         if (len > max_len)
7034                 return false;
7035
7036         /* Make sure that the data is correctly formatted. */
7037         for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) {
7038                 cur_len = data[i];
7039
7040                 if (flags_managed && data[i + 1] == EIR_FLAGS)
7041                         return false;
7042
7043                 if (tx_power_managed && data[i + 1] == EIR_TX_POWER)
7044                         return false;
7045
7046                 /* If the current field length would exceed the total data
7047                  * length, then it's invalid.
7048                  */
7049                 if (i + cur_len >= len)
7050                         return false;
7051         }
7052
7053         return true;
7054 }
7055
7056 static void add_advertising_complete(struct hci_dev *hdev, u8 status,
7057                                      u16 opcode)
7058 {
7059         struct mgmt_pending_cmd *cmd;
7060         struct mgmt_cp_add_advertising *cp;
7061         struct mgmt_rp_add_advertising rp;
7062         struct adv_info *adv_instance, *n;
7063         u8 instance;
7064
7065         BT_DBG("status %d", status);
7066
7067         hci_dev_lock(hdev);
7068
7069         cmd = pending_find(MGMT_OP_ADD_ADVERTISING, hdev);
7070
7071         if (status)
7072                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
7073
7074         list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
7075                 if (!adv_instance->pending)
7076                         continue;
7077
7078                 if (!status) {
7079                         adv_instance->pending = false;
7080                         continue;
7081                 }
7082
7083                 instance = adv_instance->instance;
7084
7085                 if (hdev->cur_adv_instance == instance)
7086                         cancel_adv_timeout(hdev);
7087
7088                 hci_remove_adv_instance(hdev, instance);
7089                 advertising_removed(cmd ? cmd->sk : NULL, hdev, instance);
7090         }
7091
7092         if (!cmd)
7093                 goto unlock;
7094
7095         cp = cmd->param;
7096         rp.instance = cp->instance;
7097
7098         if (status)
7099                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
7100                                 mgmt_status(status));
7101         else
7102                 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
7103                                   mgmt_status(status), &rp, sizeof(rp));
7104
7105         mgmt_pending_remove(cmd);
7106
7107 unlock:
7108         hci_dev_unlock(hdev);
7109 }
7110
7111 void mgmt_adv_timeout_expired(struct hci_dev *hdev)
7112 {
7113         u8 instance;
7114         struct hci_request req;
7115
7116         hdev->adv_instance_timeout = 0;
7117
7118         instance = get_current_adv_instance(hdev);
7119         if (instance == 0x00)
7120                 return;
7121
7122         hci_dev_lock(hdev);
7123         hci_req_init(&req, hdev);
7124
7125         clear_adv_instance(hdev, &req, instance, false);
7126
7127         if (list_empty(&hdev->adv_instances))
7128                 disable_advertising(&req);
7129
7130         if (!skb_queue_empty(&req.cmd_q))
7131                 hci_req_run(&req, NULL);
7132
7133         hci_dev_unlock(hdev);
7134 }
7135
7136 static int add_advertising(struct sock *sk, struct hci_dev *hdev,
7137                            void *data, u16 data_len)
7138 {
7139         struct mgmt_cp_add_advertising *cp = data;
7140         struct mgmt_rp_add_advertising rp;
7141         u32 flags;
7142         u32 supported_flags;
7143         u8 status;
7144         u16 timeout, duration;
7145         unsigned int prev_instance_cnt = hdev->adv_instance_cnt;
7146         u8 schedule_instance = 0;
7147         struct adv_info *next_instance;
7148         int err;
7149         struct mgmt_pending_cmd *cmd;
7150         struct hci_request req;
7151
7152         BT_DBG("%s", hdev->name);
7153
7154         status = mgmt_le_support(hdev);
7155         if (status)
7156                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7157                                        status);
7158
7159         flags = __le32_to_cpu(cp->flags);
7160         timeout = __le16_to_cpu(cp->timeout);
7161         duration = __le16_to_cpu(cp->duration);
7162
7163         /* The current implementation only supports a subset of the specified
7164          * flags.
7165          */
7166         supported_flags = get_supported_adv_flags(hdev);
7167         if (flags & ~supported_flags)
7168                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7169                                        MGMT_STATUS_INVALID_PARAMS);
7170
7171         hci_dev_lock(hdev);
7172
7173         if (timeout && !hdev_is_powered(hdev)) {
7174                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7175                                       MGMT_STATUS_REJECTED);
7176                 goto unlock;
7177         }
7178
7179         if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7180             pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7181             pending_find(MGMT_OP_SET_LE, hdev)) {
7182                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7183                                       MGMT_STATUS_BUSY);
7184                 goto unlock;
7185         }
7186
7187         if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) ||
7188             !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len,
7189                                cp->scan_rsp_len, false)) {
7190                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7191                                       MGMT_STATUS_INVALID_PARAMS);
7192                 goto unlock;
7193         }
7194
7195         err = hci_add_adv_instance(hdev, cp->instance, flags,
7196                                    cp->adv_data_len, cp->data,
7197                                    cp->scan_rsp_len,
7198                                    cp->data + cp->adv_data_len,
7199                                    timeout, duration);
7200         if (err < 0) {
7201                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7202                                       MGMT_STATUS_FAILED);
7203                 goto unlock;
7204         }
7205
7206         /* Only trigger an advertising added event if a new instance was
7207          * actually added.
7208          */
7209         if (hdev->adv_instance_cnt > prev_instance_cnt)
7210                 advertising_added(sk, hdev, cp->instance);
7211
7212         hci_dev_set_flag(hdev, HCI_ADVERTISING_INSTANCE);
7213
7214         if (hdev->cur_adv_instance == cp->instance) {
7215                 /* If the currently advertised instance is being changed then
7216                  * cancel the current advertising and schedule the next
7217                  * instance. If there is only one instance then the overridden
7218                  * advertising data will be visible right away.
7219                  */
7220                 cancel_adv_timeout(hdev);
7221
7222                 next_instance = hci_get_next_instance(hdev, cp->instance);
7223                 if (next_instance)
7224                         schedule_instance = next_instance->instance;
7225         } else if (!hdev->adv_instance_timeout) {
7226                 /* Immediately advertise the new instance if no other
7227                  * instance is currently being advertised.
7228                  */
7229                 schedule_instance = cp->instance;
7230         }
7231
7232         /* If the HCI_ADVERTISING flag is set or the device isn't powered or
7233          * there is no instance to be advertised then we have no HCI
7234          * communication to make. Simply return.
7235          */
7236         if (!hdev_is_powered(hdev) ||
7237             hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7238             !schedule_instance) {
7239                 rp.instance = cp->instance;
7240                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7241                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7242                 goto unlock;
7243         }
7244
7245         /* We're good to go, update advertising data, parameters, and start
7246          * advertising.
7247          */
7248         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
7249                                data_len);
7250         if (!cmd) {
7251                 err = -ENOMEM;
7252                 goto unlock;
7253         }
7254
7255         hci_req_init(&req, hdev);
7256
7257         err = schedule_adv_instance(&req, schedule_instance, true);
7258
7259         if (!err)
7260                 err = hci_req_run(&req, add_advertising_complete);
7261
7262         if (err < 0)
7263                 mgmt_pending_remove(cmd);
7264
7265 unlock:
7266         hci_dev_unlock(hdev);
7267
7268         return err;
7269 }
7270
7271 static void remove_advertising_complete(struct hci_dev *hdev, u8 status,
7272                                         u16 opcode)
7273 {
7274         struct mgmt_pending_cmd *cmd;
7275         struct mgmt_cp_remove_advertising *cp;
7276         struct mgmt_rp_remove_advertising rp;
7277
7278         BT_DBG("status %d", status);
7279
7280         hci_dev_lock(hdev);
7281
7282         /* A failure status here only means that we failed to disable
7283          * advertising. Otherwise, the advertising instance has been removed,
7284          * so report success.
7285          */
7286         cmd = pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev);
7287         if (!cmd)
7288                 goto unlock;
7289
7290         cp = cmd->param;
7291         rp.instance = cp->instance;
7292
7293         mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, MGMT_STATUS_SUCCESS,
7294                           &rp, sizeof(rp));
7295         mgmt_pending_remove(cmd);
7296
7297 unlock:
7298         hci_dev_unlock(hdev);
7299 }
7300
7301 static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
7302                               void *data, u16 data_len)
7303 {
7304         struct mgmt_cp_remove_advertising *cp = data;
7305         struct mgmt_rp_remove_advertising rp;
7306         struct mgmt_pending_cmd *cmd;
7307         struct hci_request req;
7308         int err;
7309
7310         BT_DBG("%s", hdev->name);
7311
7312         hci_dev_lock(hdev);
7313
7314         if (cp->instance && !hci_find_adv_instance(hdev, cp->instance)) {
7315                 err = mgmt_cmd_status(sk, hdev->id,
7316                                       MGMT_OP_REMOVE_ADVERTISING,
7317                                       MGMT_STATUS_INVALID_PARAMS);
7318                 goto unlock;
7319         }
7320
7321         if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7322             pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7323             pending_find(MGMT_OP_SET_LE, hdev)) {
7324                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7325                                       MGMT_STATUS_BUSY);
7326                 goto unlock;
7327         }
7328
7329         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE)) {
7330                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7331                                       MGMT_STATUS_INVALID_PARAMS);
7332                 goto unlock;
7333         }
7334
7335         hci_req_init(&req, hdev);
7336
7337         clear_adv_instance(hdev, &req, cp->instance, true);
7338
7339         if (list_empty(&hdev->adv_instances))
7340                 disable_advertising(&req);
7341
7342         /* If no HCI commands have been collected so far or the HCI_ADVERTISING
7343          * flag is set or the device isn't powered then we have no HCI
7344          * communication to make. Simply return.
7345          */
7346         if (skb_queue_empty(&req.cmd_q) ||
7347             !hdev_is_powered(hdev) ||
7348             hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
7349                 rp.instance = cp->instance;
7350                 err = mgmt_cmd_complete(sk, hdev->id,
7351                                         MGMT_OP_REMOVE_ADVERTISING,
7352                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7353                 goto unlock;
7354         }
7355
7356         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
7357                                data_len);
7358         if (!cmd) {
7359                 err = -ENOMEM;
7360                 goto unlock;
7361         }
7362
7363         err = hci_req_run(&req, remove_advertising_complete);
7364         if (err < 0)
7365                 mgmt_pending_remove(cmd);
7366
7367 unlock:
7368         hci_dev_unlock(hdev);
7369
7370         return err;
7371 }
7372
7373 static const struct hci_mgmt_handler mgmt_handlers[] = {
7374         { NULL }, /* 0x0000 (no command) */
7375         { read_version,            MGMT_READ_VERSION_SIZE,
7376                                                 HCI_MGMT_NO_HDEV |
7377                                                 HCI_MGMT_UNTRUSTED },
7378         { read_commands,           MGMT_READ_COMMANDS_SIZE,
7379                                                 HCI_MGMT_NO_HDEV |
7380                                                 HCI_MGMT_UNTRUSTED },
7381         { read_index_list,         MGMT_READ_INDEX_LIST_SIZE,
7382                                                 HCI_MGMT_NO_HDEV |
7383                                                 HCI_MGMT_UNTRUSTED },
7384         { read_controller_info,    MGMT_READ_INFO_SIZE,
7385                                                 HCI_MGMT_UNTRUSTED },
7386         { set_powered,             MGMT_SETTING_SIZE },
7387         { set_discoverable,        MGMT_SET_DISCOVERABLE_SIZE },
7388         { set_connectable,         MGMT_SETTING_SIZE },
7389         { set_fast_connectable,    MGMT_SETTING_SIZE },
7390         { set_bondable,            MGMT_SETTING_SIZE },
7391         { set_link_security,       MGMT_SETTING_SIZE },
7392         { set_ssp,                 MGMT_SETTING_SIZE },
7393         { set_hs,                  MGMT_SETTING_SIZE },
7394         { set_le,                  MGMT_SETTING_SIZE },
7395         { set_dev_class,           MGMT_SET_DEV_CLASS_SIZE },
7396         { set_local_name,          MGMT_SET_LOCAL_NAME_SIZE },
7397         { add_uuid,                MGMT_ADD_UUID_SIZE },
7398         { remove_uuid,             MGMT_REMOVE_UUID_SIZE },
7399         { load_link_keys,          MGMT_LOAD_LINK_KEYS_SIZE,
7400                                                 HCI_MGMT_VAR_LEN },
7401         { load_long_term_keys,     MGMT_LOAD_LONG_TERM_KEYS_SIZE,
7402                                                 HCI_MGMT_VAR_LEN },
7403         { disconnect,              MGMT_DISCONNECT_SIZE },
7404         { get_connections,         MGMT_GET_CONNECTIONS_SIZE },
7405         { pin_code_reply,          MGMT_PIN_CODE_REPLY_SIZE },
7406         { pin_code_neg_reply,      MGMT_PIN_CODE_NEG_REPLY_SIZE },
7407         { set_io_capability,       MGMT_SET_IO_CAPABILITY_SIZE },
7408         { pair_device,             MGMT_PAIR_DEVICE_SIZE },
7409         { cancel_pair_device,      MGMT_CANCEL_PAIR_DEVICE_SIZE },
7410         { unpair_device,           MGMT_UNPAIR_DEVICE_SIZE },
7411         { user_confirm_reply,      MGMT_USER_CONFIRM_REPLY_SIZE },
7412         { user_confirm_neg_reply,  MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
7413         { user_passkey_reply,      MGMT_USER_PASSKEY_REPLY_SIZE },
7414         { user_passkey_neg_reply,  MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
7415         { read_local_oob_data,     MGMT_READ_LOCAL_OOB_DATA_SIZE },
7416         { add_remote_oob_data,     MGMT_ADD_REMOTE_OOB_DATA_SIZE,
7417                                                 HCI_MGMT_VAR_LEN },
7418         { remove_remote_oob_data,  MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
7419         { start_discovery,         MGMT_START_DISCOVERY_SIZE },
7420         { stop_discovery,          MGMT_STOP_DISCOVERY_SIZE },
7421         { confirm_name,            MGMT_CONFIRM_NAME_SIZE },
7422         { block_device,            MGMT_BLOCK_DEVICE_SIZE },
7423         { unblock_device,          MGMT_UNBLOCK_DEVICE_SIZE },
7424         { set_device_id,           MGMT_SET_DEVICE_ID_SIZE },
7425         { set_advertising,         MGMT_SETTING_SIZE },
7426         { set_bredr,               MGMT_SETTING_SIZE },
7427         { set_static_address,      MGMT_SET_STATIC_ADDRESS_SIZE },
7428         { set_scan_params,         MGMT_SET_SCAN_PARAMS_SIZE },
7429         { set_secure_conn,         MGMT_SETTING_SIZE },
7430         { set_debug_keys,          MGMT_SETTING_SIZE },
7431         { set_privacy,             MGMT_SET_PRIVACY_SIZE },
7432         { load_irks,               MGMT_LOAD_IRKS_SIZE,
7433                                                 HCI_MGMT_VAR_LEN },
7434         { get_conn_info,           MGMT_GET_CONN_INFO_SIZE },
7435         { get_clock_info,          MGMT_GET_CLOCK_INFO_SIZE },
7436         { add_device,              MGMT_ADD_DEVICE_SIZE },
7437         { remove_device,           MGMT_REMOVE_DEVICE_SIZE },
7438         { load_conn_param,         MGMT_LOAD_CONN_PARAM_SIZE,
7439                                                 HCI_MGMT_VAR_LEN },
7440         { read_unconf_index_list,  MGMT_READ_UNCONF_INDEX_LIST_SIZE,
7441                                                 HCI_MGMT_NO_HDEV |
7442                                                 HCI_MGMT_UNTRUSTED },
7443         { read_config_info,        MGMT_READ_CONFIG_INFO_SIZE,
7444                                                 HCI_MGMT_UNCONFIGURED |
7445                                                 HCI_MGMT_UNTRUSTED },
7446         { set_external_config,     MGMT_SET_EXTERNAL_CONFIG_SIZE,
7447                                                 HCI_MGMT_UNCONFIGURED },
7448         { set_public_address,      MGMT_SET_PUBLIC_ADDRESS_SIZE,
7449                                                 HCI_MGMT_UNCONFIGURED },
7450         { start_service_discovery, MGMT_START_SERVICE_DISCOVERY_SIZE,
7451                                                 HCI_MGMT_VAR_LEN },
7452         { read_local_oob_ext_data, MGMT_READ_LOCAL_OOB_EXT_DATA_SIZE },
7453         { read_ext_index_list,     MGMT_READ_EXT_INDEX_LIST_SIZE,
7454                                                 HCI_MGMT_NO_HDEV |
7455                                                 HCI_MGMT_UNTRUSTED },
7456         { read_adv_features,       MGMT_READ_ADV_FEATURES_SIZE },
7457         { add_advertising,         MGMT_ADD_ADVERTISING_SIZE,
7458                                                 HCI_MGMT_VAR_LEN },
7459         { remove_advertising,      MGMT_REMOVE_ADVERTISING_SIZE },
7460 };
7461
7462 void mgmt_index_added(struct hci_dev *hdev)
7463 {
7464         struct mgmt_ev_ext_index ev;
7465
7466         if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7467                 return;
7468
7469         switch (hdev->dev_type) {
7470         case HCI_BREDR:
7471                 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7472                         mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev,
7473                                          NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7474                         ev.type = 0x01;
7475                 } else {
7476                         mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
7477                                          HCI_MGMT_INDEX_EVENTS);
7478                         ev.type = 0x00;
7479                 }
7480                 break;
7481         case HCI_AMP:
7482                 ev.type = 0x02;
7483                 break;
7484         default:
7485                 return;
7486         }
7487
7488         ev.bus = hdev->bus;
7489
7490         mgmt_index_event(MGMT_EV_EXT_INDEX_ADDED, hdev, &ev, sizeof(ev),
7491                          HCI_MGMT_EXT_INDEX_EVENTS);
7492 }
7493
7494 void mgmt_index_removed(struct hci_dev *hdev)
7495 {
7496         struct mgmt_ev_ext_index ev;
7497         u8 status = MGMT_STATUS_INVALID_INDEX;
7498
7499         if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7500                 return;
7501
7502         switch (hdev->dev_type) {
7503         case HCI_BREDR:
7504                 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7505
7506                 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7507                         mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev,
7508                                          NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7509                         ev.type = 0x01;
7510                 } else {
7511                         mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
7512                                          HCI_MGMT_INDEX_EVENTS);
7513                         ev.type = 0x00;
7514                 }
7515                 break;
7516         case HCI_AMP:
7517                 ev.type = 0x02;
7518                 break;
7519         default:
7520                 return;
7521         }
7522
7523         ev.bus = hdev->bus;
7524
7525         mgmt_index_event(MGMT_EV_EXT_INDEX_REMOVED, hdev, &ev, sizeof(ev),
7526                          HCI_MGMT_EXT_INDEX_EVENTS);
7527 }
7528
7529 /* This function requires the caller holds hdev->lock */
7530 static void restart_le_actions(struct hci_request *req)
7531 {
7532         struct hci_dev *hdev = req->hdev;
7533         struct hci_conn_params *p;
7534
7535         list_for_each_entry(p, &hdev->le_conn_params, list) {
7536                 /* Needed for AUTO_OFF case where might not "really"
7537                  * have been powered off.
7538                  */
7539                 list_del_init(&p->action);
7540
7541                 switch (p->auto_connect) {
7542                 case HCI_AUTO_CONN_DIRECT:
7543                 case HCI_AUTO_CONN_ALWAYS:
7544                         list_add(&p->action, &hdev->pend_le_conns);
7545                         break;
7546                 case HCI_AUTO_CONN_REPORT:
7547                         list_add(&p->action, &hdev->pend_le_reports);
7548                         break;
7549                 default:
7550                         break;
7551                 }
7552         }
7553
7554         __hci_update_background_scan(req);
7555 }
7556
7557 static void powered_complete(struct hci_dev *hdev, u8 status, u16 opcode)
7558 {
7559         struct cmd_lookup match = { NULL, hdev };
7560
7561         BT_DBG("status 0x%02x", status);
7562
7563         if (!status) {
7564                 /* Register the available SMP channels (BR/EDR and LE) only
7565                  * when successfully powering on the controller. This late
7566                  * registration is required so that LE SMP can clearly
7567                  * decide if the public address or static address is used.
7568                  */
7569                 smp_register(hdev);
7570         }
7571
7572         hci_dev_lock(hdev);
7573
7574         mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7575
7576         new_settings(hdev, match.sk);
7577
7578         hci_dev_unlock(hdev);
7579
7580         if (match.sk)
7581                 sock_put(match.sk);
7582 }
7583
7584 static int powered_update_hci(struct hci_dev *hdev)
7585 {
7586         struct hci_request req;
7587         struct adv_info *adv_instance;
7588         u8 link_sec;
7589
7590         hci_req_init(&req, hdev);
7591
7592         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
7593             !lmp_host_ssp_capable(hdev)) {
7594                 u8 mode = 0x01;
7595
7596                 hci_req_add(&req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
7597
7598                 if (bredr_sc_enabled(hdev) && !lmp_host_sc_capable(hdev)) {
7599                         u8 support = 0x01;
7600
7601                         hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT,
7602                                     sizeof(support), &support);
7603                 }
7604         }
7605
7606         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7607             lmp_bredr_capable(hdev)) {
7608                 struct hci_cp_write_le_host_supported cp;
7609
7610                 cp.le = 0x01;
7611                 cp.simul = 0x00;
7612
7613                 /* Check first if we already have the right
7614                  * host state (host features set)
7615                  */
7616                 if (cp.le != lmp_host_le_capable(hdev) ||
7617                     cp.simul != lmp_host_le_br_capable(hdev))
7618                         hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
7619                                     sizeof(cp), &cp);
7620         }
7621
7622         if (lmp_le_capable(hdev)) {
7623                 /* Make sure the controller has a good default for
7624                  * advertising data. This also applies to the case
7625                  * where BR/EDR was toggled during the AUTO_OFF phase.
7626                  */
7627                 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7628                     (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7629                      !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))) {
7630                         update_adv_data(&req);
7631                         update_scan_rsp_data(&req);
7632                 }
7633
7634                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7635                     hdev->cur_adv_instance == 0x00 &&
7636                     !list_empty(&hdev->adv_instances)) {
7637                         adv_instance = list_first_entry(&hdev->adv_instances,
7638                                                         struct adv_info, list);
7639                         hdev->cur_adv_instance = adv_instance->instance;
7640                 }
7641
7642                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7643                         enable_advertising(&req);
7644                 else if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7645                          hdev->cur_adv_instance)
7646                         schedule_adv_instance(&req, hdev->cur_adv_instance,
7647                                               true);
7648
7649                 restart_le_actions(&req);
7650         }
7651
7652         link_sec = hci_dev_test_flag(hdev, HCI_LINK_SECURITY);
7653         if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
7654                 hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,
7655                             sizeof(link_sec), &link_sec);
7656
7657         if (lmp_bredr_capable(hdev)) {
7658                 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
7659                         write_fast_connectable(&req, true);
7660                 else
7661                         write_fast_connectable(&req, false);
7662                 __hci_update_page_scan(&req);
7663                 update_class(&req);
7664                 update_name(&req);
7665                 update_eir(&req);
7666         }
7667
7668         return hci_req_run(&req, powered_complete);
7669 }
7670
7671 int mgmt_powered(struct hci_dev *hdev, u8 powered)
7672 {
7673         struct cmd_lookup match = { NULL, hdev };
7674         u8 status, zero_cod[] = { 0, 0, 0 };
7675         int err;
7676
7677         if (!hci_dev_test_flag(hdev, HCI_MGMT))
7678                 return 0;
7679
7680         if (powered) {
7681                 if (powered_update_hci(hdev) == 0)
7682                         return 0;
7683
7684                 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp,
7685                                      &match);
7686                 goto new_settings;
7687         }
7688
7689         mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7690
7691         /* If the power off is because of hdev unregistration let
7692          * use the appropriate INVALID_INDEX status. Otherwise use
7693          * NOT_POWERED. We cover both scenarios here since later in
7694          * mgmt_index_removed() any hci_conn callbacks will have already
7695          * been triggered, potentially causing misleading DISCONNECTED
7696          * status responses.
7697          */
7698         if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
7699                 status = MGMT_STATUS_INVALID_INDEX;
7700         else
7701                 status = MGMT_STATUS_NOT_POWERED;
7702
7703         mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7704
7705         if (memcmp(hdev->dev_class, zero_cod, sizeof(zero_cod)) != 0)
7706                 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
7707                                    zero_cod, sizeof(zero_cod), NULL);
7708
7709 new_settings:
7710         err = new_settings(hdev, match.sk);
7711
7712         if (match.sk)
7713                 sock_put(match.sk);
7714
7715         return err;
7716 }
7717
7718 void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
7719 {
7720         struct mgmt_pending_cmd *cmd;
7721         u8 status;
7722
7723         cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7724         if (!cmd)
7725                 return;
7726
7727         if (err == -ERFKILL)
7728                 status = MGMT_STATUS_RFKILLED;
7729         else
7730                 status = MGMT_STATUS_FAILED;
7731
7732         mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
7733
7734         mgmt_pending_remove(cmd);
7735 }
7736
7737 void mgmt_discoverable_timeout(struct hci_dev *hdev)
7738 {
7739         struct hci_request req;
7740
7741         hci_dev_lock(hdev);
7742
7743         /* When discoverable timeout triggers, then just make sure
7744          * the limited discoverable flag is cleared. Even in the case
7745          * of a timeout triggered from general discoverable, it is
7746          * safe to unconditionally clear the flag.
7747          */
7748         hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
7749         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
7750
7751         hci_req_init(&req, hdev);
7752         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
7753                 u8 scan = SCAN_PAGE;
7754                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE,
7755                             sizeof(scan), &scan);
7756         }
7757         update_class(&req);
7758
7759         /* Advertising instances don't use the global discoverable setting, so
7760          * only update AD if advertising was enabled using Set Advertising.
7761          */
7762         if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7763                 update_adv_data(&req);
7764
7765         hci_req_run(&req, NULL);
7766
7767         hdev->discov_timeout = 0;
7768
7769         new_settings(hdev, NULL);
7770
7771         hci_dev_unlock(hdev);
7772 }
7773
7774 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
7775                        bool persistent)
7776 {
7777         struct mgmt_ev_new_link_key ev;
7778
7779         memset(&ev, 0, sizeof(ev));
7780
7781         ev.store_hint = persistent;
7782         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7783         ev.key.addr.type = BDADDR_BREDR;
7784         ev.key.type = key->type;
7785         memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
7786         ev.key.pin_len = key->pin_len;
7787
7788         mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
7789 }
7790
7791 static u8 mgmt_ltk_type(struct smp_ltk *ltk)
7792 {
7793         switch (ltk->type) {
7794         case SMP_LTK:
7795         case SMP_LTK_SLAVE:
7796                 if (ltk->authenticated)
7797                         return MGMT_LTK_AUTHENTICATED;
7798                 return MGMT_LTK_UNAUTHENTICATED;
7799         case SMP_LTK_P256:
7800                 if (ltk->authenticated)
7801                         return MGMT_LTK_P256_AUTH;
7802                 return MGMT_LTK_P256_UNAUTH;
7803         case SMP_LTK_P256_DEBUG:
7804                 return MGMT_LTK_P256_DEBUG;
7805         }
7806
7807         return MGMT_LTK_UNAUTHENTICATED;
7808 }
7809
7810 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
7811 {
7812         struct mgmt_ev_new_long_term_key ev;
7813
7814         memset(&ev, 0, sizeof(ev));
7815
7816         /* Devices using resolvable or non-resolvable random addresses
7817          * without providing an identity resolving key don't require
7818          * to store long term keys. Their addresses will change the
7819          * next time around.
7820          *
7821          * Only when a remote device provides an identity address
7822          * make sure the long term key is stored. If the remote
7823          * identity is known, the long term keys are internally
7824          * mapped to the identity address. So allow static random
7825          * and public addresses here.
7826          */
7827         if (key->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7828             (key->bdaddr.b[5] & 0xc0) != 0xc0)
7829                 ev.store_hint = 0x00;
7830         else
7831                 ev.store_hint = persistent;
7832
7833         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7834         ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
7835         ev.key.type = mgmt_ltk_type(key);
7836         ev.key.enc_size = key->enc_size;
7837         ev.key.ediv = key->ediv;
7838         ev.key.rand = key->rand;
7839
7840         if (key->type == SMP_LTK)
7841                 ev.key.master = 1;
7842
7843         /* Make sure we copy only the significant bytes based on the
7844          * encryption key size, and set the rest of the value to zeroes.
7845          */
7846         memcpy(ev.key.val, key->val, sizeof(key->enc_size));
7847         memset(ev.key.val + key->enc_size, 0,
7848                sizeof(ev.key.val) - key->enc_size);
7849
7850         mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
7851 }
7852
7853 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk)
7854 {
7855         struct mgmt_ev_new_irk ev;
7856
7857         memset(&ev, 0, sizeof(ev));
7858
7859         /* For identity resolving keys from devices that are already
7860          * using a public address or static random address, do not
7861          * ask for storing this key. The identity resolving key really
7862          * is only mandatory for devices using resolvable random
7863          * addresses.
7864          *
7865          * Storing all identity resolving keys has the downside that
7866          * they will be also loaded on next boot of they system. More
7867          * identity resolving keys, means more time during scanning is
7868          * needed to actually resolve these addresses.
7869          */
7870         if (bacmp(&irk->rpa, BDADDR_ANY))
7871                 ev.store_hint = 0x01;
7872         else
7873                 ev.store_hint = 0x00;
7874
7875         bacpy(&ev.rpa, &irk->rpa);
7876         bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
7877         ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);
7878         memcpy(ev.irk.val, irk->val, sizeof(irk->val));
7879
7880         mgmt_event(MGMT_EV_NEW_IRK, hdev, &ev, sizeof(ev), NULL);
7881 }
7882
7883 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
7884                    bool persistent)
7885 {
7886         struct mgmt_ev_new_csrk ev;
7887
7888         memset(&ev, 0, sizeof(ev));
7889
7890         /* Devices using resolvable or non-resolvable random addresses
7891          * without providing an identity resolving key don't require
7892          * to store signature resolving keys. Their addresses will change
7893          * the next time around.
7894          *
7895          * Only when a remote device provides an identity address
7896          * make sure the signature resolving key is stored. So allow
7897          * static random and public addresses here.
7898          */
7899         if (csrk->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7900             (csrk->bdaddr.b[5] & 0xc0) != 0xc0)
7901                 ev.store_hint = 0x00;
7902         else
7903                 ev.store_hint = persistent;
7904
7905         bacpy(&ev.key.addr.bdaddr, &csrk->bdaddr);
7906         ev.key.addr.type = link_to_bdaddr(LE_LINK, csrk->bdaddr_type);
7907         ev.key.type = csrk->type;
7908         memcpy(ev.key.val, csrk->val, sizeof(csrk->val));
7909
7910         mgmt_event(MGMT_EV_NEW_CSRK, hdev, &ev, sizeof(ev), NULL);
7911 }
7912
7913 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
7914                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
7915                          u16 max_interval, u16 latency, u16 timeout)
7916 {
7917         struct mgmt_ev_new_conn_param ev;
7918
7919         if (!hci_is_identity_address(bdaddr, bdaddr_type))
7920                 return;
7921
7922         memset(&ev, 0, sizeof(ev));
7923         bacpy(&ev.addr.bdaddr, bdaddr);
7924         ev.addr.type = link_to_bdaddr(LE_LINK, bdaddr_type);
7925         ev.store_hint = store_hint;
7926         ev.min_interval = cpu_to_le16(min_interval);
7927         ev.max_interval = cpu_to_le16(max_interval);
7928         ev.latency = cpu_to_le16(latency);
7929         ev.timeout = cpu_to_le16(timeout);
7930
7931         mgmt_event(MGMT_EV_NEW_CONN_PARAM, hdev, &ev, sizeof(ev), NULL);
7932 }
7933
7934 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
7935                            u32 flags, u8 *name, u8 name_len)
7936 {
7937         char buf[512];
7938         struct mgmt_ev_device_connected *ev = (void *) buf;
7939         u16 eir_len = 0;
7940
7941         bacpy(&ev->addr.bdaddr, &conn->dst);
7942         ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
7943
7944         ev->flags = __cpu_to_le32(flags);
7945
7946         /* We must ensure that the EIR Data fields are ordered and
7947          * unique. Keep it simple for now and avoid the problem by not
7948          * adding any BR/EDR data to the LE adv.
7949          */
7950         if (conn->le_adv_data_len > 0) {
7951                 memcpy(&ev->eir[eir_len],
7952                        conn->le_adv_data, conn->le_adv_data_len);
7953                 eir_len = conn->le_adv_data_len;
7954         } else {
7955                 if (name_len > 0)
7956                         eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
7957                                                   name, name_len);
7958
7959                 if (memcmp(conn->dev_class, "\0\0\0", 3) != 0)
7960                         eir_len = eir_append_data(ev->eir, eir_len,
7961                                                   EIR_CLASS_OF_DEV,
7962                                                   conn->dev_class, 3);
7963         }
7964
7965         ev->eir_len = cpu_to_le16(eir_len);
7966
7967         mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
7968                     sizeof(*ev) + eir_len, NULL);
7969 }
7970
7971 static void disconnect_rsp(struct mgmt_pending_cmd *cmd, void *data)
7972 {
7973         struct sock **sk = data;
7974
7975         cmd->cmd_complete(cmd, 0);
7976
7977         *sk = cmd->sk;
7978         sock_hold(*sk);
7979
7980         mgmt_pending_remove(cmd);
7981 }
7982
7983 static void unpair_device_rsp(struct mgmt_pending_cmd *cmd, void *data)
7984 {
7985         struct hci_dev *hdev = data;
7986         struct mgmt_cp_unpair_device *cp = cmd->param;
7987
7988         device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
7989
7990         cmd->cmd_complete(cmd, 0);
7991         mgmt_pending_remove(cmd);
7992 }
7993
7994 bool mgmt_powering_down(struct hci_dev *hdev)
7995 {
7996         struct mgmt_pending_cmd *cmd;
7997         struct mgmt_mode *cp;
7998
7999         cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
8000         if (!cmd)
8001                 return false;
8002
8003         cp = cmd->param;
8004         if (!cp->val)
8005                 return true;
8006
8007         return false;
8008 }
8009
8010 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
8011                               u8 link_type, u8 addr_type, u8 reason,
8012                               bool mgmt_connected)
8013 {
8014         struct mgmt_ev_device_disconnected ev;
8015         struct sock *sk = NULL;
8016
8017         /* The connection is still in hci_conn_hash so test for 1
8018          * instead of 0 to know if this is the last one.
8019          */
8020         if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8021                 cancel_delayed_work(&hdev->power_off);
8022                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8023         }
8024
8025         if (!mgmt_connected)
8026                 return;
8027
8028         if (link_type != ACL_LINK && link_type != LE_LINK)
8029                 return;
8030
8031         mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
8032
8033         bacpy(&ev.addr.bdaddr, bdaddr);
8034         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8035         ev.reason = reason;
8036
8037         mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
8038
8039         if (sk)
8040                 sock_put(sk);
8041
8042         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8043                              hdev);
8044 }
8045
8046 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
8047                             u8 link_type, u8 addr_type, u8 status)
8048 {
8049         u8 bdaddr_type = link_to_bdaddr(link_type, addr_type);
8050         struct mgmt_cp_disconnect *cp;
8051         struct mgmt_pending_cmd *cmd;
8052
8053         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8054                              hdev);
8055
8056         cmd = pending_find(MGMT_OP_DISCONNECT, hdev);
8057         if (!cmd)
8058                 return;
8059
8060         cp = cmd->param;
8061
8062         if (bacmp(bdaddr, &cp->addr.bdaddr))
8063                 return;
8064
8065         if (cp->addr.type != bdaddr_type)
8066                 return;
8067
8068         cmd->cmd_complete(cmd, mgmt_status(status));
8069         mgmt_pending_remove(cmd);
8070 }
8071
8072 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8073                          u8 addr_type, u8 status)
8074 {
8075         struct mgmt_ev_connect_failed ev;
8076
8077         /* The connection is still in hci_conn_hash so test for 1
8078          * instead of 0 to know if this is the last one.
8079          */
8080         if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8081                 cancel_delayed_work(&hdev->power_off);
8082                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8083         }
8084
8085         bacpy(&ev.addr.bdaddr, bdaddr);
8086         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8087         ev.status = mgmt_status(status);
8088
8089         mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
8090 }
8091
8092 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
8093 {
8094         struct mgmt_ev_pin_code_request ev;
8095
8096         bacpy(&ev.addr.bdaddr, bdaddr);
8097         ev.addr.type = BDADDR_BREDR;
8098         ev.secure = secure;
8099
8100         mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
8101 }
8102
8103 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8104                                   u8 status)
8105 {
8106         struct mgmt_pending_cmd *cmd;
8107
8108         cmd = pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
8109         if (!cmd)
8110                 return;
8111
8112         cmd->cmd_complete(cmd, mgmt_status(status));
8113         mgmt_pending_remove(cmd);
8114 }
8115
8116 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8117                                       u8 status)
8118 {
8119         struct mgmt_pending_cmd *cmd;
8120
8121         cmd = pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
8122         if (!cmd)
8123                 return;
8124
8125         cmd->cmd_complete(cmd, mgmt_status(status));
8126         mgmt_pending_remove(cmd);
8127 }
8128
8129 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8130                               u8 link_type, u8 addr_type, u32 value,
8131                               u8 confirm_hint)
8132 {
8133         struct mgmt_ev_user_confirm_request ev;
8134
8135         BT_DBG("%s", hdev->name);
8136
8137         bacpy(&ev.addr.bdaddr, bdaddr);
8138         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8139         ev.confirm_hint = confirm_hint;
8140         ev.value = cpu_to_le32(value);
8141
8142         return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
8143                           NULL);
8144 }
8145
8146 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8147                               u8 link_type, u8 addr_type)
8148 {
8149         struct mgmt_ev_user_passkey_request ev;
8150
8151         BT_DBG("%s", hdev->name);
8152
8153         bacpy(&ev.addr.bdaddr, bdaddr);
8154         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8155
8156         return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
8157                           NULL);
8158 }
8159
8160 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8161                                       u8 link_type, u8 addr_type, u8 status,
8162                                       u8 opcode)
8163 {
8164         struct mgmt_pending_cmd *cmd;
8165
8166         cmd = pending_find(opcode, hdev);
8167         if (!cmd)
8168                 return -ENOENT;
8169
8170         cmd->cmd_complete(cmd, mgmt_status(status));
8171         mgmt_pending_remove(cmd);
8172
8173         return 0;
8174 }
8175
8176 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8177                                      u8 link_type, u8 addr_type, u8 status)
8178 {
8179         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8180                                           status, MGMT_OP_USER_CONFIRM_REPLY);
8181 }
8182
8183 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8184                                          u8 link_type, u8 addr_type, u8 status)
8185 {
8186         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8187                                           status,
8188                                           MGMT_OP_USER_CONFIRM_NEG_REPLY);
8189 }
8190
8191 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8192                                      u8 link_type, u8 addr_type, u8 status)
8193 {
8194         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8195                                           status, MGMT_OP_USER_PASSKEY_REPLY);
8196 }
8197
8198 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8199                                          u8 link_type, u8 addr_type, u8 status)
8200 {
8201         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8202                                           status,
8203                                           MGMT_OP_USER_PASSKEY_NEG_REPLY);
8204 }
8205
8206 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
8207                              u8 link_type, u8 addr_type, u32 passkey,
8208                              u8 entered)
8209 {
8210         struct mgmt_ev_passkey_notify ev;
8211
8212         BT_DBG("%s", hdev->name);
8213
8214         bacpy(&ev.addr.bdaddr, bdaddr);
8215         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8216         ev.passkey = __cpu_to_le32(passkey);
8217         ev.entered = entered;
8218
8219         return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
8220 }
8221
8222 void mgmt_auth_failed(struct hci_conn *conn, u8 hci_status)
8223 {
8224         struct mgmt_ev_auth_failed ev;
8225         struct mgmt_pending_cmd *cmd;
8226         u8 status = mgmt_status(hci_status);
8227
8228         bacpy(&ev.addr.bdaddr, &conn->dst);
8229         ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
8230         ev.status = status;
8231
8232         cmd = find_pairing(conn);
8233
8234         mgmt_event(MGMT_EV_AUTH_FAILED, conn->hdev, &ev, sizeof(ev),
8235                     cmd ? cmd->sk : NULL);
8236
8237         if (cmd) {
8238                 cmd->cmd_complete(cmd, status);
8239                 mgmt_pending_remove(cmd);
8240         }
8241 }
8242
8243 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
8244 {
8245         struct cmd_lookup match = { NULL, hdev };
8246         bool changed;
8247
8248         if (status) {
8249                 u8 mgmt_err = mgmt_status(status);
8250                 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
8251                                      cmd_status_rsp, &mgmt_err);
8252                 return;
8253         }
8254
8255         if (test_bit(HCI_AUTH, &hdev->flags))
8256                 changed = !hci_dev_test_and_set_flag(hdev, HCI_LINK_SECURITY);
8257         else
8258                 changed = hci_dev_test_and_clear_flag(hdev, HCI_LINK_SECURITY);
8259
8260         mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
8261                              &match);
8262
8263         if (changed)
8264                 new_settings(hdev, match.sk);
8265
8266         if (match.sk)
8267                 sock_put(match.sk);
8268 }
8269
8270 static void clear_eir(struct hci_request *req)
8271 {
8272         struct hci_dev *hdev = req->hdev;
8273         struct hci_cp_write_eir cp;
8274
8275         if (!lmp_ext_inq_capable(hdev))
8276                 return;
8277
8278         memset(hdev->eir, 0, sizeof(hdev->eir));
8279
8280         memset(&cp, 0, sizeof(cp));
8281
8282         hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
8283 }
8284
8285 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
8286 {
8287         struct cmd_lookup match = { NULL, hdev };
8288         struct hci_request req;
8289         bool changed = false;
8290
8291         if (status) {
8292                 u8 mgmt_err = mgmt_status(status);
8293
8294                 if (enable && hci_dev_test_and_clear_flag(hdev,
8295                                                           HCI_SSP_ENABLED)) {
8296                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8297                         new_settings(hdev, NULL);
8298                 }
8299
8300                 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
8301                                      &mgmt_err);
8302                 return;
8303         }
8304
8305         if (enable) {
8306                 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
8307         } else {
8308                 changed = hci_dev_test_and_clear_flag(hdev, HCI_SSP_ENABLED);
8309                 if (!changed)
8310                         changed = hci_dev_test_and_clear_flag(hdev,
8311                                                               HCI_HS_ENABLED);
8312                 else
8313                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8314         }
8315
8316         mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
8317
8318         if (changed)
8319                 new_settings(hdev, match.sk);
8320
8321         if (match.sk)
8322                 sock_put(match.sk);
8323
8324         hci_req_init(&req, hdev);
8325
8326         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
8327                 if (hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
8328                         hci_req_add(&req, HCI_OP_WRITE_SSP_DEBUG_MODE,
8329                                     sizeof(enable), &enable);
8330                 update_eir(&req);
8331         } else {
8332                 clear_eir(&req);
8333         }
8334
8335         hci_req_run(&req, NULL);
8336 }
8337
8338 static void sk_lookup(struct mgmt_pending_cmd *cmd, void *data)
8339 {
8340         struct cmd_lookup *match = data;
8341
8342         if (match->sk == NULL) {
8343                 match->sk = cmd->sk;
8344                 sock_hold(match->sk);
8345         }
8346 }
8347
8348 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
8349                                     u8 status)
8350 {
8351         struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
8352
8353         mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
8354         mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
8355         mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
8356
8357         if (!status)
8358                 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
8359                                    dev_class, 3, NULL);
8360
8361         if (match.sk)
8362                 sock_put(match.sk);
8363 }
8364
8365 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
8366 {
8367         struct mgmt_cp_set_local_name ev;
8368         struct mgmt_pending_cmd *cmd;
8369
8370         if (status)
8371                 return;
8372
8373         memset(&ev, 0, sizeof(ev));
8374         memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
8375         memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
8376
8377         cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
8378         if (!cmd) {
8379                 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
8380
8381                 /* If this is a HCI command related to powering on the
8382                  * HCI dev don't send any mgmt signals.
8383                  */
8384                 if (pending_find(MGMT_OP_SET_POWERED, hdev))
8385                         return;
8386         }
8387
8388         mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
8389                            cmd ? cmd->sk : NULL);
8390 }
8391
8392 static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
8393 {
8394         int i;
8395
8396         for (i = 0; i < uuid_count; i++) {
8397                 if (!memcmp(uuid, uuids[i], 16))
8398                         return true;
8399         }
8400
8401         return false;
8402 }
8403
8404 static bool eir_has_uuids(u8 *eir, u16 eir_len, u16 uuid_count, u8 (*uuids)[16])
8405 {
8406         u16 parsed = 0;
8407
8408         while (parsed < eir_len) {
8409                 u8 field_len = eir[0];
8410                 u8 uuid[16];
8411                 int i;
8412
8413                 if (field_len == 0)
8414                         break;
8415
8416                 if (eir_len - parsed < field_len + 1)
8417                         break;
8418
8419                 switch (eir[1]) {
8420                 case EIR_UUID16_ALL:
8421                 case EIR_UUID16_SOME:
8422                         for (i = 0; i + 3 <= field_len; i += 2) {
8423                                 memcpy(uuid, bluetooth_base_uuid, 16);
8424                                 uuid[13] = eir[i + 3];
8425                                 uuid[12] = eir[i + 2];
8426                                 if (has_uuid(uuid, uuid_count, uuids))
8427                                         return true;
8428                         }
8429                         break;
8430                 case EIR_UUID32_ALL:
8431                 case EIR_UUID32_SOME:
8432                         for (i = 0; i + 5 <= field_len; i += 4) {
8433                                 memcpy(uuid, bluetooth_base_uuid, 16);
8434                                 uuid[15] = eir[i + 5];
8435                                 uuid[14] = eir[i + 4];
8436                                 uuid[13] = eir[i + 3];
8437                                 uuid[12] = eir[i + 2];
8438                                 if (has_uuid(uuid, uuid_count, uuids))
8439                                         return true;
8440                         }
8441                         break;
8442                 case EIR_UUID128_ALL:
8443                 case EIR_UUID128_SOME:
8444                         for (i = 0; i + 17 <= field_len; i += 16) {
8445                                 memcpy(uuid, eir + i + 2, 16);
8446                                 if (has_uuid(uuid, uuid_count, uuids))
8447                                         return true;
8448                         }
8449                         break;
8450                 }
8451
8452                 parsed += field_len + 1;
8453                 eir += field_len + 1;
8454         }
8455
8456         return false;
8457 }
8458
8459 static void restart_le_scan(struct hci_dev *hdev)
8460 {
8461         /* If controller is not scanning we are done. */
8462         if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
8463                 return;
8464
8465         if (time_after(jiffies + DISCOV_LE_RESTART_DELAY,
8466                        hdev->discovery.scan_start +
8467                        hdev->discovery.scan_duration))
8468                 return;
8469
8470         queue_delayed_work(hdev->workqueue, &hdev->le_scan_restart,
8471                            DISCOV_LE_RESTART_DELAY);
8472 }
8473
8474 static bool is_filter_match(struct hci_dev *hdev, s8 rssi, u8 *eir,
8475                             u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8476 {
8477         /* If a RSSI threshold has been specified, and
8478          * HCI_QUIRK_STRICT_DUPLICATE_FILTER is not set, then all results with
8479          * a RSSI smaller than the RSSI threshold will be dropped. If the quirk
8480          * is set, let it through for further processing, as we might need to
8481          * restart the scan.
8482          *
8483          * For BR/EDR devices (pre 1.2) providing no RSSI during inquiry,
8484          * the results are also dropped.
8485          */
8486         if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8487             (rssi == HCI_RSSI_INVALID ||
8488             (rssi < hdev->discovery.rssi &&
8489              !test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks))))
8490                 return  false;
8491
8492         if (hdev->discovery.uuid_count != 0) {
8493                 /* If a list of UUIDs is provided in filter, results with no
8494                  * matching UUID should be dropped.
8495                  */
8496                 if (!eir_has_uuids(eir, eir_len, hdev->discovery.uuid_count,
8497                                    hdev->discovery.uuids) &&
8498                     !eir_has_uuids(scan_rsp, scan_rsp_len,
8499                                    hdev->discovery.uuid_count,
8500                                    hdev->discovery.uuids))
8501                         return false;
8502         }
8503
8504         /* If duplicate filtering does not report RSSI changes, then restart
8505          * scanning to ensure updated result with updated RSSI values.
8506          */
8507         if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks)) {
8508                 restart_le_scan(hdev);
8509
8510                 /* Validate RSSI value against the RSSI threshold once more. */
8511                 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8512                     rssi < hdev->discovery.rssi)
8513                         return false;
8514         }
8515
8516         return true;
8517 }
8518
8519 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8520                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
8521                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8522 {
8523         char buf[512];
8524         struct mgmt_ev_device_found *ev = (void *)buf;
8525         size_t ev_size;
8526
8527         /* Don't send events for a non-kernel initiated discovery. With
8528          * LE one exception is if we have pend_le_reports > 0 in which
8529          * case we're doing passive scanning and want these events.
8530          */
8531         if (!hci_discovery_active(hdev)) {
8532                 if (link_type == ACL_LINK)
8533                         return;
8534                 if (link_type == LE_LINK && list_empty(&hdev->pend_le_reports))
8535                         return;
8536         }
8537
8538         if (hdev->discovery.result_filtering) {
8539                 /* We are using service discovery */
8540                 if (!is_filter_match(hdev, rssi, eir, eir_len, scan_rsp,
8541                                      scan_rsp_len))
8542                         return;
8543         }
8544
8545         /* Make sure that the buffer is big enough. The 5 extra bytes
8546          * are for the potential CoD field.
8547          */
8548         if (sizeof(*ev) + eir_len + scan_rsp_len + 5 > sizeof(buf))
8549                 return;
8550
8551         memset(buf, 0, sizeof(buf));
8552
8553         /* In case of device discovery with BR/EDR devices (pre 1.2), the
8554          * RSSI value was reported as 0 when not available. This behavior
8555          * is kept when using device discovery. This is required for full
8556          * backwards compatibility with the API.
8557          *
8558          * However when using service discovery, the value 127 will be
8559          * returned when the RSSI is not available.
8560          */
8561         if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
8562             link_type == ACL_LINK)
8563                 rssi = 0;
8564
8565         bacpy(&ev->addr.bdaddr, bdaddr);
8566         ev->addr.type = link_to_bdaddr(link_type, addr_type);
8567         ev->rssi = rssi;
8568         ev->flags = cpu_to_le32(flags);
8569
8570         if (eir_len > 0)
8571                 /* Copy EIR or advertising data into event */
8572                 memcpy(ev->eir, eir, eir_len);
8573
8574         if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
8575                 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
8576                                           dev_class, 3);
8577
8578         if (scan_rsp_len > 0)
8579                 /* Append scan response data to event */
8580                 memcpy(ev->eir + eir_len, scan_rsp, scan_rsp_len);
8581
8582         ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
8583         ev_size = sizeof(*ev) + eir_len + scan_rsp_len;
8584
8585         mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
8586 }
8587
8588 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8589                       u8 addr_type, s8 rssi, u8 *name, u8 name_len)
8590 {
8591         struct mgmt_ev_device_found *ev;
8592         char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
8593         u16 eir_len;
8594
8595         ev = (struct mgmt_ev_device_found *) buf;
8596
8597         memset(buf, 0, sizeof(buf));
8598
8599         bacpy(&ev->addr.bdaddr, bdaddr);
8600         ev->addr.type = link_to_bdaddr(link_type, addr_type);
8601         ev->rssi = rssi;
8602
8603         eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
8604                                   name_len);
8605
8606         ev->eir_len = cpu_to_le16(eir_len);
8607
8608         mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
8609 }
8610
8611 void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
8612 {
8613         struct mgmt_ev_discovering ev;
8614
8615         BT_DBG("%s discovering %u", hdev->name, discovering);
8616
8617         memset(&ev, 0, sizeof(ev));
8618         ev.type = hdev->discovery.type;
8619         ev.discovering = discovering;
8620
8621         mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
8622 }
8623
8624 static void adv_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
8625 {
8626         BT_DBG("%s status %u", hdev->name, status);
8627 }
8628
8629 void mgmt_reenable_advertising(struct hci_dev *hdev)
8630 {
8631         struct hci_request req;
8632         u8 instance;
8633
8634         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
8635             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
8636                 return;
8637
8638         instance = get_current_adv_instance(hdev);
8639
8640         hci_req_init(&req, hdev);
8641
8642         if (instance) {
8643                 schedule_adv_instance(&req, instance, true);
8644         } else {
8645                 update_adv_data(&req);
8646                 update_scan_rsp_data(&req);
8647                 enable_advertising(&req);
8648         }
8649
8650         hci_req_run(&req, adv_enable_complete);
8651 }
8652
8653 static struct hci_mgmt_chan chan = {
8654         .channel        = HCI_CHANNEL_CONTROL,
8655         .handler_count  = ARRAY_SIZE(mgmt_handlers),
8656         .handlers       = mgmt_handlers,
8657         .hdev_init      = mgmt_init_hdev,
8658 };
8659
8660 int mgmt_init(void)
8661 {
8662         return hci_mgmt_chan_register(&chan);
8663 }
8664
8665 void mgmt_exit(void)
8666 {
8667         hci_mgmt_chan_unregister(&chan);
8668 }